Orthopedics Medical News about Knee arthritis, Quadriceps, Knee flexion

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Can an anterior quadriceps release improve range of motion in the stiff arthritic knee
Journal of Arthroplasty, 07/27/09

Tarabichi S et al. – The success in obtaining an immediate and significant improvement in range of motion (ROM) by releasing only the quadriceps muscle from its tethering adhesions and keeping other pathological changes such as large osteophytes, severe knee deformities, and irregular articular surfaces intact clearly demonstrates that the inadequate excursion of the quadriceps muscle and tendon is the main limiting factor to better knee flexion.

Methods

Aim was to investigate if tethering adhesions of the quadriceps muscle are the major pathological structures responsible for a limited range of motion in the stiff arthritic knee
42 modified quadriceps muscle releases were performed on 24 pts with advanced OA scheduled for total knee arthroplasty
Ranges of motion were documented intraoperatively both before and immediately after the release

Results

Passive flexion improved significantly in all pts following a modified quadriceps release, despite any presence of osteophytes or severe deformities
These results strongly implicate adhesions of the quadricepsmuscle to the underlying femur, prevent the distal excursion of the quadriceps tendon

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