Comparison of Nonposterior- and Posterior-Stabilized Mobile-Bearing Total Knee Arthroplasty

Comparison of Nonposterior- and Posterior-Stabilized Mobile-Bearing Total Knee Arthroplasty A Prospective, Randomized Study

Status

Completed

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01075620

Enrollment

126

Registered

2010-02-25

Start date

2002-05-31

Completion date

2010-01-31

Last updated

2010-02-25

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

Conditions

Osteoarthritis

Keywords

rotating platform, posterior stabilized, non-posterior stabilized

Brief summary

The purpose of this study is to determine if there are any clinical or radiographic differences in non-posterior stabilized rotating mobile bearing design versus a posterior stabilized rotating mobile bearing designs.

Detailed description

Out comes measures were to determine 1. whether the knee and function scores and the radiographic results of the knees with a PFC Sigma RP knee prosthesis would be better than those with an LCS RP prosthesis. 2. whether the patients with a PFC RP knee prosthesis would have a better range of knee motion than those with an LCS RP prosthesis. 3. whether patient satisfaction and preference would be better in the patients having a PFC Sigma RP knee prosthesis than those of patients having an LCS RP knee prosthesis 4. whether complication rate would be less in the knees with a PFC sigma RP knee prosthesis than in the knees with an LCS RP prosthesis.

Interventions

DEVICEPFC-Sigma RP

Posterior stabilizing rotating platform total knee components

DEVICELPS RP

non-posterior stabilized rotating platform design

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

30 Years to 90 Years

Healthy volunteers

Inclusion criteria

* End-stage osteoarthritis of the knee joint requiring total knee arthroplasty with bilateral disease

Exclusion criteria

* Inflammatory disease * patient with other Lower extremity disease which may affect functional outcome * Neurologic disease effecting patients lower extremity * Revision surgery * Patient not medically cleared for bilateral surgery

Design outcomes

Primary

Measure	Time frame
Knee Society knee score	at 3 months, 1 year, than annually

Secondary

Measure	Time frame
Range of motion	at 3 months, 1 year, than annually

Countries

South Korea

Outcome results

None listed

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