THE ASSESSMENT OF MUSCLE DYSFUNCTION IN PATIENTS WITH HIP OSTEOARTHRITIS COMBINED WITH FEMORAL DEFORMITY PRIOR TOTAL HIP ARTHROPLASTY
The primary purpose of this study was to assess the functional state of different muscles of the lower limb in patients with hip osteoarthritis (OA) combined with femoral deformity due to previous osteotomy. We measured the muscle strength of 20 patients before total hip arthroplasty (THA). All patients were examined on the handheld dynamometers. The absolute peak force of the lower limb muscles was measured. The relative peak force was calculated taking person's weight into account. We found that the absolute and relative peak force in an OA limb was significantly decreased as compared with a healthy limb. Flexors and extensors of the knee, flexors of the foot were the most deficient. However, weakness of abductor and adductor muscles was less reduced than the weakness of other muscles. Therefore, our results showed that femoral deformity (due to previous osteotomy) has an effect on the abductor and adductor force.