Fourty-one cases (fifty-three knees) treated by high tibial osteotomy between 1975 and 1984 were revieued. A comparison study of both staple fixation and compression clamps was reported. Average age of patients at operation was 64.1 years (50-82 years) and follow up period after surgery was four years and two months. Staple fixation and compression fixation showed almost same results. But range of motion was better in compression fixation than in staple fixation.
