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Comparison of Postoperative Functional Outcomes Between Subvastus and Medial Parapatellar Approach in Total Knee Arthroplasty

NCT07742696 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 84

Last updated 2026-08-03

No results posted yet for this study

Summary

This study aims to compare the effects of the medial parapatellar approach (MP) and the subvastus approach (SV) on postoperative clinical function in total knee arthroplasty (TKA). A total of 84 patients, who visit the Joint Surgery Department of Peking University Third Hospital and are diagnosed with end-stage knee osteoarthritis and require unilateral, primary total knee arthroplasty, will be recruited. The patients will be randomly assigned to two groups, with 42 patients in each group. TKA will be performed using the MP and SV approaches respectively. Postoperative data such as quadriceps muscle strength, the time of first unassisted straight leg raise (SLR), joint range of motion (ROM), KSS score, WOMAC score, SF-12 score, VAS score, and shear wave elastography (SWE) of the medial thigh muscle will be collected. The patients will be followed up for 2 years postoperatively to compare the short-term and long-term clinical functional outcomes of the two surgical approaches.

Conditions

  • Osteoarthritis (OA) of the Knee

Interventions

PROCEDURE

subvastus

Patients receive total knee arthroplasty with subvastus approach to expose the knee joint.

PROCEDURE

medial parapatellar

Patients receive total knee arthroplasty with medial parapatellar approach to expose the knee joint

Sponsors & Collaborators

  • Peking University Third Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
50 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-07-15
Primary Completion
2027-02-15
Completion
2029-07-15

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07742696 on ClinicalTrials.gov