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Center for Hip and Knee Surgery, Mooresville, Indiana 46158, USA.
A total of 100 patients having bilateral total knee replacements simultaneously were randomized prospectively--one knee having a vastus muscle-splitting approach and the other knee having a median parapatellar approach-to evaluate differences in lateral release, postoperative rehabilitation, ease of approach, and complications in total knee replacement surgery. There were 25 lateral releases on the muscle-splitting side and 26 on the median parapatellar side (P = .871). There were no differences in range of motion on day 2 or discharge, straight-leg raise, terminal knee extension, extensor lag, lateral release, or rehabilitation. There were 2 postoperative hematomas and 1 manipulation, all on the muscle-splitting side. All complications occurred from the muscle-splitting side. The muscle-splitting approach cannot be recommended as being superior to the median parapatellar approach.
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