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臀肌挛缩症的病因和发病情况目前尚不完全清楚。国外报道不多,国内自1975年以来发病率有逐渐上升趋势。我们于1992年4月～6月对1010名4～6岁儿童进行调查,现报告如下。 方法与结果
The cause and incidence of gluteal muscle contracture is not yet fully understood. Few foreign reports, the incidence since the country has been gradually rising trend since 1975. We surveyed 1010 children aged 4 to 6 years from April to June 1992 and reports the following. Methods and results