髌骨与髌股关节表面置换

自１９８３年始开展髌骨软化症和髌股关节骨性关节炎的手术治疗。先采用单纯塑料人工髌骨表面置换术，平均随诊４４．９月，结果表明该法只能收到短暂效果，最终因塑料髌骨磨损股骨髁部骨质而失败。为克服这一问题，于１９８９年５月开始研制Ｙ－Ｌ－Ｑ型人工髌股关节及相应手术器械，经测试合乎要求后于１９９１年１月用于临床，为１６个膝（１３例患者）作了髌股关节表面置换术，髌骨表面用高分子聚乙烯假体置换，于相对应股骨髁间

Patella Resurfacing and Patellofemoral Resurfacing

Since 1983 isolated polyethylene patellar prosthesis was used for patella resurfacing of 19 patients with patellofemoral osteoarthritis.After an average of 44.9 months follow-up,the treatment was found to be not as satisfactory as earlier trials.The main reason was the wide erosion of femoral condyle caused by the polyethylene patella.To overcome this shortness,a new type of patellofemoral prosthesis was designed by the authors, which was named Y-L-Q, From January,1991 to November,1993,this prosthesis was used to treat 16 knees of 13 patients with patellofemoral osteoarthritis. Most of those patients improved both symptomatically and functionally. The good to excellent results rate was 87.5%(14/16 knees )at the time of an average 10 month follow-up.The early results of our experience with patellofemoral resurfacing are encouraging, and extended follow-ups are in progress.