Subvastus vs. Medial Parapatellar Approaches in Total Knee Arthroplasty With Quadriceps Muscle Elastography

Not Applicable

Completed

• Conditions: Total Knee Arthroplasty
• Interventions: Procedure: Medial Parapatellar approach; Procedure: Subvastus approach

• Registration Number: NCT06297746
• Lead Sponsor: Istanbul University - Cerrahpasa (IUC)

Brief Summary

ABSTRACT

INTRODUCTION

Knee osteoarthritis is a common joint pathology causing joint pain and ambulatory limitations. In primary total knee arthroplasty (TKA) surgeries, medial parapatellar (MP) and subvastus (SV) approaches are frequently used. The MP approach provides good exposure and is more widely used. In the SV approach, the vastus medialis muscle is preserved. Some argue that the extensor mechanism may heal earlier with the SV approach. In this study, unlike previous studies, the investigators aimed to quantitatively compare the early outcomes of MP and SV approaches, through shear wave elastography (SWE) measurements isolated over the vastus medialis and vastus lateralis muscles.

MATERIALS AND METHODS

The study included 20 patients with indications for TKA due to primary osteoarthritis, divided into MP and SV groups. SWE measurements of the vastus medialis and vastus lateralis muscles were performed preoperatively and at 3-month follow-up. Clinical scores (Knee Society Score and WOMAC) and straight leg raising time were recorded both preoperatively and postoperatively.

Detailed Description

Not available

Study Timeline

• Study Start: 2023-07-10
• Primary Completion: 2023-12-01
• Study Completion: 2023-12-01
• Status Verified: 2024-03
• Study First Submitted: 2024-03-01
• Study First Submitted QC: 2024-03-01
• Last Update Submitted: 2024-03-06
• Study First Posted: 2024-03-07
• Last Update Posted: 2024-03-08

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

• Diagnosis of primary osteoarthritis

Exclusion Criteria

• Diagnosis of secondary osteoarthritis
• Uncontrolled diabetes
• Uncontrolled hypertension

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Medial Parapatellar approach	Medial Parapatellar approach	Patients indicated for total knee arthroplasty.
Subvastus approach	Subvastus approach	Patients indicated for total knee arthroplasty.

Primary Outcome Measures

Name	Time	Method
Shear wave values	3 month	Ultrasonic measurements

Trial Locations

Locations (1)

Istanbul University - Cerrahpasa, Cerrahpasa Faculty of Medicine; 🇹🇷 Istanbul, Fatih, Turkey