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Final Program


Final Congress Guide

Clinical Sciences/Health Conditions

300 Section - TKA and Performance of Knee Flexor and Extensor Muscles: Isokinetic Testing as a Key Evaluation Tool

Wednesday, May 20, 2026
6:00 PM - 7:30 PM PT
Objectives : To analyze the impact of TKA on the strength and endurance of knee flexor and extensor muscles during the late rehabilitation phase.

Design: A retrospective descriptive study was conducted in the Department of Physical Medicine and Rehabilitation at CHU Ibn Rochd Casablanca between October 2024 and March 2025. Thirty-five patients with unilateral TKA who completed postoperative rehabilitation were included. Isokinetic assessment (Cybex Norm) measured peak torque of the quadriceps and hamstrings, the H/Q ratio, total work, and curve patterns at angular velocities of 60°/s and 180°/s. Clinical and functional parameters included joint mobility, muscle strength, walking distance and speed, and the Lequesne algo-functional index

Results: Thirty-five patients were analyzed. Most underwent TKA for osteoarthritis. Isokinetic testing showed improved peak torque values for both quadriceps and hamstrings compared with the contralateral arthritic knee. H/Q ratios were globally satisfactory at both testing speeds. Functionally, patients demonstrated good joint mobility, adequate proximal muscle strength, and acceptable gait performance.

Conclusion: Isokinetic testing is a reliable and reproducible tool for assessing postoperative muscle recovery after TKA. This study confirms substantial improvements in knee strength, endurance, and overall function, highlighting the value of isokinetic evaluation in postoperative follow-up