Journal
INTERNATIONAL ORTHOPAEDICS
Volume 32, Issue 6, Pages 795-798Publisher
SPRINGER
DOI: 10.1007/s00264-007-0409-7
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The purpose of this study was to compare the range of motion after standard version posterior stabilised TKR and high-flexion version TKR in patients receiving bilateral total knee replacement. Thirty-five patients were recruited. The range of motion of the knees was measured clinically with a goniometer in both the pre-operative period and the most recent follow-up. It was found that the pre-operative range of motion was comparable in the two groups. The average post-operative flexion was 105A degrees A +/- 13A degrees in the standard version group and 106A degrees A +/- 14A degrees in the high-flexion design group (p = 0.201, paired t-test; beta error = 0.073). A slight loss in flexion was observed in the standard version group (0.5A degrees) as opposed to a slight gain in the high-flexion design group (2A degrees). However, this was not statistically significant (p = 0.251, paired t-test; beta error = 0.105).
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