为预防和治疗小儿先天性髋脱位术后再脱位。对１９７２年末～１９９５年３月间５５例（５８髋）小儿先天性髋脱位术后再脱位的病例进行随访，随访时间最长１４年，最短１．５年，平均６．９年。结果发现２例（４髋）为双侧再脱位，１例为单侧３次脱位，余均为单侧再脱位。其中半脱位１４例（１６髋），占２７．６％，全脱位４１例（４２髋），占７２．４％。再脱位的发生率３．７５％。术式选择不当、手术操作不妥、术后处理失误及功能练习错误是引起该病的常见原因，也是要我们预防该病发生的关键环节。一经发现再脱位，应及早处理，方法要确切、简单、实用 To prevent and treat children with congenital dislocation of the hip after dislocation. A total of 55 cases (58 hips) of children with dislocation of the congenital dislocation of the hip were followed up for a maximum of 14 years and a minimum of 1.5 years (average 6.9 years) after the end of 1972 to March 1995. Two patients (4 hips) were found to have bilateral dislocations and one patient had 3 unilateral dislocations, all of which were unilateral dislocations. Subluxation in 14 cases (16 hips), accounting for 27.6%, total dislocation in 41 cases (42 hips), accounting for 72.4%. The incidence of dislocation 3.75%. Improper choice of surgical procedures, improper surgical procedures, mistakes in postoperative management and erroneous functional exercises are the common causes of the disease and the key to preventing the occurrence of the disease. Once dislocated, should be dealt with as soon as possible, the method should be accurate, simple and practical