Reconstructing Soft Tissue around Patella for Treatment of Congenital Dislocation of Patella

To analyze the results of reconstructing soft tissues around patella for the treatment of congenital dislocation of patella. Methods: 6 cases with congenital dislocation of patella were treated with reconstructing soft tissues around patella from 1987 to 2000. The age of the patients at the surgery varied from 8 to 48 years. All cases wer unilateral, 4 in left, 2 in right. a, Loosening the outer tissues of the patella and tightening the inner tissues of the patella. b, Meial transfer of patella tendon. c, Transfer of muscle of semitendinosus. d, Outer transfer of muscle of vastus medialis. Operation combination: a and b suits for the younger patients and patients of slight dislocation; a, b and c or a, b and d or a, b, c and d suit for the elder patients and patients of severe dislocation. Results: The average of period of follow-up was 3 years. All of the cases didn't develop patella redislocation after operation. The function of knee in 5 cases were normal without any symptoms and signs. The other 2 cases were abnormal: The oldest one complicated of a alleviative pain of knee after operation. The other was able to bend the knee about 90 degrees. Conclusion: The patients with congenital dislocation of patella must be interfered with operation as early as possible. The disease tended to be arthritis of patella-vastus, and lost the ability to work early. It had a simply operation and a good results to reconstruct soft tissues around patella for the treatment of congenital dislocation of patella.