Abstract
Twenty-four knees of fifteen patients who underwent high tibial osteotomy (HTO) for medial osteoarthritis (OA) of the knee were followed clinically and radiologically for 10 to 19 years. Average patient age was sixty years at the time of surgery. Procedures involved wedge osteotomy and staple fixation.
The femorotibial angle (FTA), tibial plateau angle (TPA), Mikulicz line (M line) and Koshino's OA grade were measured on radiographs in the standing position. Clinical results were evaluated using the Japan Orthopaedic Association score (JOA score). No sighnificant correlation was found in FTA, TPA, M line, Koshino's OA grade, and JOA score respectively. Although recurrent varus knee occurred in most patients, more than sixty percent of patients showed no progression in koshino's OA grade at the time of follow up.
