Twenty cases with osteoarthritis of the knee joint were treated by high tibial osteotomy combined with open meniscetomy of the discoid lateral meniscus. In all cases, good clinical and radiological results were obtained. The average JOA score improved from 63.3 points to 82.8 points, and the average femorotibial angle (FTA) was corrected from 182.8° to 167.2°. There were no cases, experiencing pain in the lateral compartment of the knee joint. The results indicated our method is not inferior to the usual high tibial osteotomy.
