Patellar Resurfacing in Total Knee Arthroplasty Leads to Better Isokinetic Performance and Higher Clinical Scores

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04637490

Enrollment

Registered

2020-11-19

Start date

2017-06-01

Completion date

2018-11-01

Last updated

2020-11-19

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

Conditions

Knee Osteoarthritis

Keywords

patellar resurfacing, isokinetic testing

Brief summary

For decades there have been concerns about patellar resurfacing (PR) in total knee arthroplasty (TKA) and the individual preference of the surgeon is still the main determinant of whether or not resurfacing is applied. According to preference, surgeons can be categorized in 3 main groups of those who usually, selectively or rarely resurface. The aim of this prospective, randomized, controlled study to is compare the isokinetic performance and clinical outcome of TKAs with PR and without PR.

Detailed description

Patients undergoing TKA for primary osteoarthritis of the knee are randomly assigned to either the PR or non-PR groups. The differences between groups with respect to age, BMI, gender, and preoperative Knee Society Score (KSS), and isokinetic performance are evaluated. Patients are evaluated at postoperative 3, 6, and 12 months with KSS and at 6 months and 1 year with isokinetic measurements.

Interventions

DEVICEpatellar component

patellar resurfacing

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender

ALL

Age

55 Years to 80 Years

Healthy volunteers

Inclusion criteria

* Patients aged 55 to 80 years * unilateral primary osteoarthritis

Exclusion criteria

* bilateral osteoarthritis * inflammatory arthritis * post-traumatic osteoarthritis * previous knee surgery * neuromuscular diseases

Design outcomes

Primary

Measure	Time frame	Description
isokinetic test	Change from preoperative isokinetic test results at 6th months and 12th months isokinetic test results	isokinetic test during extension and flexion of the knee

Secondary

Measure	Time frame	Description
Knee Society Score (KSS): It has two different subscales: Knee and Function 100-80: Excellent 79-70:Good 69-60:Fair below 60:Poor	Change from preoperative KSS results at 3rd months, 6th months and 12th months KSS results	Knee Society Score (KSS)

Countries

Turkey (Türkiye)

Outcome results

None listed

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