Muscle Strength Testing Following Surgery for Acetabular Fractures

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Abstract
Summary A retrospective clinical analysis was performed on 30 patients who underwent surgery for acetabular fractures. In addition to clinical and radio-graphic evaluations, muscle strength was tested using an isokinetic dynamometer. Average follow-up time was 21 months. Joint surface and congruency were restored within 3 mm in 29 of 30 cases. The average hip score was 83. Eight patients had an unsatisfactory result. Only 14 patients had a normal gait, while seven patients had a Trendelenburg gait. The overall strength deficit was 27%. This mean strength deficit was highly correlated with the hip-rating score. The greatest loss of strength was in abduction, where the average deficit was 50%. The loss of abduction strength was significantly greater for patients operated on through posterior approaches. Among patients operated on through a Kocher-Langenbeck approach, those with transverse fractures had significantly larger losses of abduction strength than those with posterior wall fractures.

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