股骨髁上内翻截骨治疗髌骨软骨软化症

Supracondylar Femoral Varus Osteotomy for Chondromalacia Patellae

髌骨软骨软化症发病率与Ｑ角呈直线回归关系，Ｑ角越大，发病率越高。作者自１９８９～１９９５年收治１０例（１１个髌骨）因Ｑ角偏大或／及股胫角偏小所致的髌骨软骨软化症，采用股骨髁上楔形内翻截骨及髌外侧支持带松解术或加关节软骨削平术治疗，经平均２．９年随访，优良率８１．８％，满意率１００％。本文就该术与其它手术方法（胫骨结节抬高术、髌韧带止点内移术和经关节镜手术）进行比较分析。

Previous studies have shown a linear regression relation between quadriceps angle (Q angle) and incidence of chondromalacia patellae(CP), the bigger Q angle, the higher incidence of CP. 10 cases (11 patellae) of CP resulted from increased Q angle or/and decreased tibiofemoral angle were treated by supracondylar femoral varus osteotomy or/and a release of lateral patellar retinaculum from 1989 to 1995. Good and excellent results were gotten in 81 8% of 10 cases follwede up for an average period of 2 9 years. This operation was compared and analyzed with others including elevation of the tibial tubercle, medial transposition of the insertion of patellar ligament, and transarthroscopic operation. The indication for the operation and procedure were discussed in details.