Results of high tibial osteotomy. The reasons for poor correction angle.:The Reasons for Poor Correction Angle

概要

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We evaluated the results in thirty-eight patients (forty-six knees) who had had a high tibial osteotomy for unicompartmental osteoarthritis. The operations were performed between 1972 and 1985. Most of the good results were in corrected knees in which the femoro-tibial angle (FTA) is between 163 and 172 degrees. The success of high tibial osteotomy depends upon not only accurate operative technique but also proper prediction of the correcting angle based upon X-rays taken in the exact antero-posterior standing position prior to surgery. Failure to obtain accurate preoperative FTA results in overcorrection or undercorrection. Therefore it is important to note in preoperative drawing that the FTA based upon standing X-rays changes according to knee rotation and flexion.
西日本整形・災害外科学会の論文