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A Study to Compare the Press Fit Condylar (P.F.C.) Sigma Rotating-platform High-flexion (RP-F) Versus the Press Fit Condylar (P.F.C.) Sigma Rotating-platform (RP) Knee Implants

A Prospective, Single Blinded, Multi-centre Randomised Controlled Trial Comparing the Post Operative Range of Motion of the P.F.C. Sigma RP-F Knee With the P.F.C. Sigma RP Knee in Primary Total Knee Arthroplasty.

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00733369
Enrollment
106
Registered
2008-08-13
Start date
2007-11-30
Completion date
2014-08-31
Last updated
2016-09-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Knee Osteoarthritis

Keywords

Arthroplasty, Replacement, Knee, PFC Sigma RPF, PFC Sigma RP

Brief summary

The main objective of this study is to determine if the P.F.C. Sigma RP-F Knee delivers a greater post-operative range of motion (ROM) compared with the P.F.C. Sigma RP Knee in primary TKA. The secondary objectives of this investigation are to evaluate the clinical and patient outcomes and survivorship associated with the DePuy P.F.C. Sigma RP-F and RP Posterior Stabilised (PS) Knee over 5 years.

Detailed description

Primary Outcome: Change from pre-operative range of motion at 1 year between patients receiving P.F.C. Sigma RP vs P.F.C. Sigma RP-F Secondary endpoints: Comparative evaluation of any post-operative variation between subjects receiving primary TKA with either of the above devices in terms of Knee and Osteoarthritis Scores (KOOS), American Knee Society Score (AKS), EQ-5D Score and Oxford Knee Score (OKS)

Interventions

DEVICEPFC Sigma RP-F

An orthopaedic implant for total knee replacement with a high flexion rotating platform bearing

DEVICEPFC Sigma RP

An orthopaedic implant for total knee replacement with a standard flexion rotating platform bearing

Sponsors

DePuy International
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
45 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Male or female subjects, aged between 45 and 75 years inclusive. * Subjects who are able to give voluntary, written informed consent to participate in this clinical investigation and from whom consent has been obtained. * Subjects who, in the opinion of the Clinical Investigator, are able to understand this clinical investigation, co-operate with the investigational procedures and are willing to return to the hospital for all the required post-operative follow-ups. * Subjects who present with osteoarthritis that in the opinion of the clinical investigator requires a primary total knee arthroplasty. * Subjects who in the opinion of the Clinical Investigator are considered to be suitable for treatment with either the P.F.C Sigma RP-F or the P.F.C Sigma RP knee, according to the indications specified in the package insert leaflet. * Subjects who have authorised the transfer of his/her pseudonymised information to DePuy.

Exclusion criteria

* Subjects who, in the opinion of the Clinical Investigator, have an existing condition that would compromise their participation and follow-up in this clinical investigation. * Female subjects who are pregnant or lactating. * Subjects who are known drug or alcohol abusers or with psychological disorders that could affect follow-up care or treatment outcomes. * Subjects who have participated in a clinical investigation with an investigational product in the last month( 30 days). * Subjects who are currently involved in any injury litigation claims. * Subjects with a known history of poor compliance to medical treatment. * Subjects who have previously had an osteotomy or significant surgery in the affected knee.

Design outcomes

Primary

MeasureTime frameDescription
Change From Pre-op to 1 Year Range of Motion.1 yearRange of motion is knee flexion (how far the patient can bend their knee) minus knee extension (how far the patient can straighten their knee). The result of this subtraction is the range of motion (bending and straightening) for that knee.

Secondary

MeasureTime frameDescription
To Compare the Change in KOOS Pain Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS Pain Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS Pain Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3 - 6 monthsAmerican Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.
To Compare the Change in KOOS Symptoms Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3-6 monthsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS Symptoms Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS Symptoms Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS Symptoms Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3-6 monthsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3-6 monthsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsAmerican Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.
To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3-6 monthsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearAmerican Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.
To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsAmerican Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.
To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsAmerican Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.
To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3 - 6 monthsAmerican Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.
To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearAmerican Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.
To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsAmerican Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.
To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3 - 6 monthsThe Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.
To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearThe Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.
To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsThe Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.
To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsThe Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.
To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3 - 6 monthsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3 - 6 monthsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3 - 6 monthsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3 - 6 monthsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Pain/Discomfort Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3 - 6 monthsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in KOOS Pain Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3-6 monthsThe Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).
To Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.3 - 6 monthsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.2 yearsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.5 yearsEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.
To Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.1 yearEQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Countries

Spain, United Kingdom

Participant flow

Recruitment details

2 sites enrolled 106 knees in 98 subjects who were then randomized into 2 groups, 50 into the PFC Sigma RP-F group and 56 into the PFC Sigma RP group.

Pre-assignment details

Study protocol was designed and executed on using 'knees' as study units.

Participants by arm

ArmCount
PFC Sigma RP-F
125 patients to be allocated to this arm according to blinding envelopes PFC Sigma RP-F : An orthopaedic implant for total knee replacement with a high flexion rotating platform bearing
50
PFC Sigma RP
125 patients to be allocated to this arm according to blinding envelopes PFC Sigma RP : An orthopaedic implant for total knee replacement with a standard flexion rotating platform bearing
56
Total106

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event44
Overall StudyLost to Follow-up21
Overall StudyProtocol Violation44

Baseline characteristics

CharacteristicPFC Sigma RPTotalPFC Sigma RP-F
Age, Continuous66.3 years
STANDARD_DEVIATION 6.4
65.8 years
STANDARD_DEVIATION 6.8
65.2 years
STANDARD_DEVIATION 7.2
Region of Enrollment
Spain
52 participants100 participants48 participants
Region of Enrollment
United Kingdom
4 participants6 participants2 participants
Sex: Female, Male
Female
42 Participants72 Participants30 Participants
Sex: Female, Male
Male
14 Participants34 Participants20 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 500 / 56
serious
Total, serious adverse events
7 / 507 / 56

Outcome results

Primary

Change From Pre-op to 1 Year Range of Motion.

Range of motion is knee flexion (how far the patient can bend their knee) minus knee extension (how far the patient can straighten their knee). The result of this subtraction is the range of motion (bending and straightening) for that knee.

Time frame: 1 year

Population: 106 enrolled knees, 11 of which excluded from the analysis due to:{0 Deaths + 8 Protocol Violations(bilaterals accrued at site where bilateral not allowed, used first knee operated upon: 4 investigational \&4 control) + 2 lost to follow up (1 Inv \& 1 Contr) + 1 missing outcome (1 Inv \& 0 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FChange From Pre-op to 1 Year Range of Motion.13.11 DegreesStandard Deviation 14.89
PFC Sigma RPChange From Pre-op to 1 Year Range of Motion.10.71 DegreesStandard Deviation 14.38
Secondary

To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

American Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.

Time frame: 1 year

Population: 106 knees enrolled, 11 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 2 Lost to follow up (1Inv \& 1Contr) + 1 Missing outcome (1Inv \& 0Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.30.5 PointsStandard Deviation 19.3
PFC Sigma RPTo Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.30.1 PointsStandard Deviation 19.9
Secondary

To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

American Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.

Time frame: 2 years

Population: 106 knees enrolled, 16 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 4 Revisions (1Inv \& 3Contr) + 3 Lost to follow up (2Inv \& 1Contr) + 1 Missing outcome (0Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.24.9 PointsStandard Deviation 18.4
PFC Sigma RPTo Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.26.5 PointsStandard Deviation 18.1
Secondary

To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

American Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.

Time frame: 3 - 6 months

Population: 106 knees enrolled, 10 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 1 Lost to follow up (1Inv \& 0Contr) + 1 Missing outcome (1Inv \& 0Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.25.0 PointsStandard Deviation 19.6
PFC Sigma RPTo Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.28.9 PointsStandard Deviation 17.3
Secondary

To Compare the Change in American Knee Society (AKS) Function Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

American Knee Society (AKS) function score is a 0-100 point score (where 100 indicates excellent knee function) that evaluates the affected knee.

Time frame: 5 years

Population: Study terminated early due to a slow recruitment rate. 5 Year data not available.

Secondary

To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

American Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.

Time frame: 1 year

Population: 106 enrolled knees, 11 knees excluded from analysis due to: {0 Deaths + 8 Protocol Violations (4 Inv, 4 Contr) + 2 lost to follow up (1 Inv, 1 Contr) + 1 missing outcome (1 Inv, 0 Contr) }

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.40.0 PointsStandard Deviation 17.6
PFC Sigma RPTo Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.38.9 PointsStandard Deviation 17.2
Secondary

To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

American Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.

Time frame: 2 years

Population: 106 enrolled knees, 18 knees excluded from analysis due to: {0 Deaths + 8 Protocol Violations (4 Inv, 4 Contr) + 4 revisions (1 Inv, 1 Contr) + 3 Lost to follow up (2 Inv, 1 Contr) + 3 missing outcome (0 Inv, 3 Cntr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.37.3 PointsStandard Deviation 20.6
PFC Sigma RPTo Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.36.8 PointsStandard Deviation 19.6
Secondary

To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

American Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.

Time frame: 3 - 6 months

Population: 106 knees enrolled, 10 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 1 Lost to follow up (1Inv \& 0Contr) + 1 Missing outcome (1Inv \& 0Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.36.3 PointsStandard Deviation 17.9
PFC Sigma RPTo Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.39.1 PointsStandard Deviation 15.7
Secondary

To Compare the Change in American Knee Society (AKS) Knee Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

American Knee Society (AKS) knee score is a 0-100 point score (where 100 indicates excellent knee condition) that evaluates the affected knee. The knee score is composed of Pain, Range of Motion, and Stability.

Time frame: 5 years

Population: Study terminated early due to a slow recruitment rate. 5 year data not available.

Secondary

To Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 1 year

Population: 106 knees enrolled, 11 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 2 Lost to follow up (1Inv \& 1Contr) + 1 Missing outcome (0Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.24 PointsStandard Deviation 0.65
PFC Sigma RPTo Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.24 PointsStandard Deviation 0.62
Secondary

To Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 2 years

Population: 106 knees enrolled, 15 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + + 4 Revisions (1Inv \& 3Contr) + 3 Lost to follow up (2Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.21 PointsStandard Deviation 0.8
PFC Sigma RPTo Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.17 PointsStandard Deviation 0.63
Secondary

To Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 3 - 6 months

Population: 106 knees enrolled, 9 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 1 Lost to follow up (1Inv \& 0Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.27 PointsStandard Deviation 0.72
PFC Sigma RPTo Compare the Change in EQ-5D3L Anxiety/Depression Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.27 PointsStandard Deviation 0.63
Secondary

To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 1 year

Population: 106 knees enrolled, 11 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 2 Lost to follow up (1Inv \& 1Contr) + 1 Missing outcome (0Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.62 PointsStandard Deviation 0.58
PFC Sigma RPTo Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.50 PointsStandard Deviation 0.58
Secondary

To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 2 years

Population: 106 knees enrolled, 15 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 4 Revisions (1Inv \& 3Contr) + 3 Lost to follow up (2Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.58 PointsStandard Deviation 0.63
PFC Sigma RPTo Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.48 PointsStandard Deviation 0.58
Secondary

To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 3 - 6 months

Population: 106 knees enrolled, 9 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 1 Lost to follow up (1Inv \& 0Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.58 PointsStandard Deviation 0.62
PFC Sigma RPTo Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.58 PointsStandard Deviation 0.57
Secondary

To Compare the Change in EQ-5D3L MOBILITY Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 5 years

Population: Study terminated early to slow recruitment rate. 5 Year data not available.

Secondary

To Compare the Change in EQ-5D3L Pain/Discomfort Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 5 years

Population: Study terminated early due to slow recruitment rate. 5 Year data not available.

Secondary

To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 1 year

Population: 106 enrolled knees, 11 of which excluded from analysis due to: {0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 2 Lost to follow up (1 Inv \& 1 Contr) + 1 Missing outcome ( 0 Inv \& 1 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.11 PointsStandard Deviation 0.49
PFC Sigma RPTo Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.22 PointsStandard Deviation 0.58
Secondary

To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 2 years

Population: 106 enrolled knees, 15 of which excluded from analysis due to: {0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 4 Revisions (1 Inv \& 3 Contr) + 3 Lost to follow up (2 Inv \& 1 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.07 PointsStandard Deviation 0.51
PFC Sigma RPTo Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.15 PointsStandard Deviation 0.55
Secondary

To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 3 - 6 months

Population: 106 knees enrolled, 9 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 1 Lost to follow up (1Inv \& 0Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.04 PointsStandard Deviation 0.56
PFC Sigma RPTo Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.19 PointsStandard Deviation 0.56
Secondary

To Compare the Change in EQ-5D3L Self-Care Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 5 years

Population: Study terminated early due to slow recruitment rate. 5 Year data not available.

Secondary

To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 1 year

Population: 106 knees enrolled, 11 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 2 Lost to follow up (1Inv \& 1Contr) + 1 Missing outcome (0Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.53 PointsStandard Deviation 0.63
PFC Sigma RPTo Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.48 PointsStandard Deviation 0.61
Secondary

To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 2 years

Population: 106 knees enrolled, 15 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 4 Revisions (1Inv \& 3Contr) + 3 Lost to follow up (2Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.42 PointsStandard Deviation 0.59
PFC Sigma RPTo Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.44 PointsStandard Deviation 0.58
Secondary

To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 3 - 6 months

Population: 106 knees enrolled, 9 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 1 Lost to follow up (1Inv \& 0Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.40 PointsStandard Deviation 0.65
PFC Sigma RPTo Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.50 PointsStandard Deviation 0.58
Secondary

To Compare the Change in EQ-5D3L Usual Activities Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 5 years

Population: Study terminated early due to slow recruitment rate. 5 Year data not available.

Secondary

To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 1 year

Population: 106 knees enrolled, 13 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 2 Lost to follow up (1Inv \& 1Contr) + 3 Missing outcome (0Inv \& 3Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L VAS Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.20.6 PointsStandard Deviation 26.5
PFC Sigma RPTo Compare the Change in EQ-5D3L VAS Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.13.6 PointsStandard Deviation 26.5
Secondary

To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 2 years

Population: 106 knees enrolled, 15 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 4 Revisions (4Inv \& 4Contr)+ 3 Lost to follow up (2Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L VAS Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.10.8 PointsStandard Deviation 24.7
PFC Sigma RPTo Compare the Change in EQ-5D3L VAS Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.11.4 PointsStandard Deviation 26.2
Secondary

To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 3 - 6 months

Population: 106 knees enrolled, 9 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 1 Lost to follow up (1Inv \& 0Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in EQ-5D3L VAS Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.18.3 PointsStandard Deviation 23.7
PFC Sigma RPTo Compare the Change in EQ-5D3L VAS Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.16.4 PointsStandard Deviation 23.3
Secondary

To Compare the Change in EQ-5D3L VAS Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 5 years

Population: Study terminated early due to slow recruitment rate. 5 Year data not available.

Secondary

To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 1 year

Population: 106 enrolled knees, 11 of which excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4 Inv \& 4 Contr)+ 2 Lost to follow up (1 Inv \& 1 Contr) + 1 Missing outcome (0 Inv \& 1 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.41.5 PointsStandard Deviation 18.5
PFC Sigma RPTo Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.44.0 PointsStandard Deviation 23
Secondary

To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 2 years

Population: 106 enrolled knees, 15 of which excluded from the analysis due to:{0 Deaths+8 Protocol Violations (4 Inv \& 4 Contr)+ 4 Revisions (1 Inv \& 3 Contr) + 3 Lost to follow up (2 Inv \& 1 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.39.6 PointsStandard Deviation 18.7
PFC Sigma RPTo Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.42.5 PointsStandard Deviation 23.5
Secondary

To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 3-6 months

Population: 106 Enrolled knees, 11 of which excluded from analysis due to:{0 Deaths+8 Protocol Violations(4Inv \& 4Contr)+1 Lost to follow up(1Inv \& 0Contr)+2 Missing outcome(1Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.36.0 PointsStandard Deviation 18.7
PFC Sigma RPTo Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.43.7 PointsStandard Deviation 20.1
Secondary

To Compare the Change in KOOS ADL (Activities of Daily Living) Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 5 years

Population: Study terminated early due to a slow recruitment rate.

Secondary

To Compare the Change in KOOS Pain Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 1 year

Population: 106 enrolled knees, 11 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (Bilaterals accrued at site where bilaterals are not allowed, used 1st knee operated upon: 4 investigational\&4control)+ 2 lost to follow up (1 Inv, 1 Contr)+ 1 missing outcome (0Inv, 1 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS Pain Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.45.0 PointsStandard Deviation 20.5
PFC Sigma RPTo Compare the Change in KOOS Pain Score From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.48.9 PointsStandard Deviation 19.4
Secondary

To Compare the Change in KOOS Pain Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 2 years

Population: 106 enrolled knees, 15 of which excluded from analysis due to:{0 Deaths + 8 Protocol Violation (4 Inv, 4 Contr) + 4 Revisions (1 Inv, 3 Contr) + 3 Lost to follow up (2 Inv, 1 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS Pain Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.43.3 PointsStandard Deviation 21.3
PFC Sigma RPTo Compare the Change in KOOS Pain Score From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.47.8 PointsStandard Deviation 20.1
Secondary

To Compare the Change in KOOS Pain Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 3-6 months

Population: 106 Enrolled knees, 11 of which excluded from analysis due to:{0 Deaths+8 Protocol Violations(4Inv \& 4Contr)+1 Lost to follow up(1Inv \& 0Contr)+2 Missing outcome(1Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS Pain Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.39.7 PointsStandard Deviation 21.7
PFC Sigma RPTo Compare the Change in KOOS Pain Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.46.5 PointsStandard Deviation 18
Secondary

To Compare the Change in KOOS Pain Score From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 5 years

Population: This study has been terminated early, therefore the 5 year data was not collected.

Secondary

To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 1 year

Population: 106 enrolled knees, 13 of which excluded from the analysis due to:{0 Deaths+ 8 Protocol Violations (4 Inv \& 4 Contr)+ 2 Lost to follow up (1 Inv \& 1 Contr) + 3 Missing outcome (0 Inv \& 3 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.49.0 PointsStandard Deviation 29
PFC Sigma RPTo Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.51.7 PointsStandard Deviation 27.7
Secondary

To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 2 years

Population: 106 knees enrolled, 16 of which excluded from analysis due to: {0 Deaths + 8 Protocol Violations (4 Inv \& 4 Contr) + 4 Revisions (1 Inv \& 3 Contr) + 3 Lost to follow up (2 Inv \& 1 Contr) + 1 Missing outcome (1 Inv \& 0 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.44.3 PointsStandard Deviation 31.6
PFC Sigma RPTo Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.50.8 PointsStandard Deviation 23.6
Secondary

To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 3-6 months

Population: 106 knees enrolled, 11 of which excluded from analysis due to:{0 deaths + 8 Protocol Violations + 1 Lost to follow up (1Inv \& 0Contr) + 2 Missing outcome (1Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.42.2 PointsStandard Deviation 26.7
PFC Sigma RPTo Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.48.0 PointsStandard Deviation 26.2
Secondary

To Compare the Change in KOOS QOL (Quality of Life) Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 5 years

Population: Study terminated early due to slow recruitment rate. 5 Year data not available.

Secondary

To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 1 year

Population: 106 enrolled knees, 13 of which excluded from analysis due to:{0 Deaths+8 Protocol Violations (4 Inv \& 4 Contr)+ 2 Lost to follow up (1 Inv \& 1 Contr) + 3 Missing outcome (0 Inv \& 3 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.35.4 PointsStandard Deviation 27.7
PFC Sigma RPTo Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.33.5 PointsStandard Deviation 25.1
Secondary

To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 2 years

Population: 106 enrolled knees, 16 of which excluded from analysis due to:{0 Deaths+8 Protocol Violations (4 Inv \& 4 Contr)+ 4 Revisions (1 Inv \& 3 Contr) + 3 Lost to follow up (2 Inv \& 1 Contr) + 1 Missing outcome (1 Inv \& 0 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.36.6 PointsStandard Deviation 27.8
PFC Sigma RPTo Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.37.8 PointsStandard Deviation 25.3
Secondary

To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 3-6 months

Population: 106 knees enrolled, 11 of which excluded from analysis due to: {0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 1 Lost to follow up (1Inv \& 0Contr) + 2 Missing outcome (1Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.14.4 PointsStandard Deviation 22.3
PFC Sigma RPTo Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 3 to 6 Months Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.17.4 PointsStandard Deviation 24.7
Secondary

To Compare the Change in KOOS SPORTS and RECREATION Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 5 years

Population: Study terminated early due to slow recruitment rate, 5 year data not available.

Secondary

To Compare the Change in KOOS Symptoms Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 1 year

Population: 106 enrolled knees, 11 of which excluded from the analysis due to:{0 Deaths+8 Protocol Violations (4 Inv \& 4 Contr)+ 2 Lost to follow up (1 Inv \& 1 Contr) + 1 Missing outcome (0 Inv \& 1 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS Symptoms Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.29.8 PointsStandard Deviation 21.7
PFC Sigma RPTo Compare the Change in KOOS Symptoms Score From Pre-Op to 1 Year Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.30.5 PointsStandard Deviation 22.1
Secondary

To Compare the Change in KOOS Symptoms Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 2 years

Population: 106 enrolled knees, 15 of which excluded from the analysis due to:{0 Deaths+8 Protocol Violations (4 Inv \& 4 Contr)+ 4 Revisions (1 Inv \& 1 Contr)+ 3 Lost to follow up (2 Inv \& 1 Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS Symptoms Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.30.5 PointsStandard Deviation 20.9
PFC Sigma RPTo Compare the Change in KOOS Symptoms Score From Pre-Op to 2 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.33.5 PointsStandard Deviation 25
Secondary

To Compare the Change in KOOS Symptoms Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 3-6 months

Population: 106 Enrolled knees, 11 of which excluded from analysis due to:{0 Deaths+8 Protocol Violations(4Inv \& 4Contr)+1 Lost to follow up(1Inv \& 0Contr)+2 Missing outcome(1Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in KOOS Symptoms Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.23.1 PointsStandard Deviation 18.4
PFC Sigma RPTo Compare the Change in KOOS Symptoms Score From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.32.4 PointsStandard Deviation 21.1
Secondary

To Compare the Change in KOOS Symptoms Score From Pre-Op to 5 Years Post Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient reported outcome that evaluates the short and long-term symptoms and function in subjects with knee injury and osteoarthritis. It consists of 5 separately scored subscales - Pain, Symptoms, Function in daily living (ADL), Function in Sport and Recreation, and knee-related Quality of Life (QOL) - ranging from 0 to 100 point score (where 100 indicates the best outcome).

Time frame: 5 years

Population: This study was terminated early due to a slow recruitment rate. 5 year data not available.

Secondary

To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.

Time frame: 1 year

Population: 106 knees enrolled, 12 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 2 Lost to follow up (1Inv \& 1Contr) + 2 Missing outcome (1Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-18.7 PointsStandard Deviation 8.6
PFC Sigma RPTo Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 1 Year Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-19.4 PointsStandard Deviation 8.7
Secondary

To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.

Time frame: 2 years

Population: 106 knees enrolled, 17 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 4 Revisions (1Inv \& 3Contr) + 3 Lost to follow up (2Inv \& 1Contr) + 2 Missing outcome (0Inv \& 2Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-17.3 PointsStandard Deviation 9.7
PFC Sigma RPTo Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 2 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-19.1 PointsStandard Deviation 9.6
Secondary

To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.

Time frame: 3 - 6 months

Population: 106 knees enrolled, 10 of which were excluded from analysis due to:{0 Deaths + 8 Protocol Violations (4Inv \& 4Contr) + 1 Lost to follow up (1Inv \& 0Contr) + 1 Missing outcome (0Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-14.4 PointsStandard Deviation 8.8
PFC Sigma RPTo Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 3 to 6 Months Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-18.0 PointsStandard Deviation 8.7
Secondary

To Compare the Change in Oxford Knee Score (OKS) From Pre-Op to 5 Years Post-Op Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

The Oxford Knee Score (OKS) is a 12 to 60 point patient reported outcome (PRO) score (where 12 indicates the best outcome) that evaluates the affected knee. The total score is composed of Pain and Function.

Time frame: 5 years

Population: Study terminated early due to a slow recruitment rate. 5 Year data not available.

Secondary

To Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 3 - 6 months

Population: 106 knees enrolled, 9 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 1 Lost to follow up (1Inv \& 0Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.56 PointsStandard Deviation 0.81
PFC Sigma RPTo Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.67 PointsStandard Deviation 0.83
Secondary

To Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 2 years

Population: 106 knees enrolled, 15 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 4 Revisions (1Inv \& 3Contr) + 3 Lost to follow up (2Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.72 PointsStandard Deviation 0.83
PFC Sigma RPTo Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.60 PointsStandard Deviation 0.82
Secondary

To Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.

EQ-5D3L is a patient reported standardized instrument used to measure health that comprises of 5 descriptive dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression; and 1 visual analog scale (VAS) that measures health. The descriptive dimensions each have 3 levels: no problems (scored as 1), some problems (scored as 2), and extreme problems (scored as 3); whereas the VAS measure ranges from 0 to 100 where 100 is the best imaginable health state.

Time frame: 1 year

Population: 106 knees enrolled, 11 of which excluded from analysis due to:{0Deaths + 8 Protocol Violations (4Inv \& 4 Contr) + 2 Lost to follow up (1Inv \& 1Contr) + 1 Missing outcome (0Inv \& 1Contr)}

ArmMeasureValue (MEAN)Dispersion
PFC Sigma RP-FTo Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.67 PointsStandard Deviation 0.77
PFC Sigma RPTo Compare the EQ-5D3L Pain/Discomfort Score Between PFC Sigma RP and PFC Sigma RP-F Treatment Groups.-0.68 PointsStandard Deviation 0.82

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026