儿童桡骨头半脱位

Radial-head Subluxation in Children

对48例儿童桡骨头半脱位进行分析。2岁以下14人,2～4岁25人,4岁以上9人。35人首次发生,占72.9％。牵拉前臂引起者26人,占54.2％;外伤引起10人,占20.8％;原因不明12人,占25％。均手法复位治愈。提示儿童桡骨头半脱位可分为旋前型及旋后型,相应则有屈肘前臂旋后及屈肘前臂旋前两种手法复位法。强调对有外伤史和症状不典型患儿的诊断,必须排除轻微骨折的可能。

Forty-eight children with radial-head subluxation were studied. 14 of them were under 2 years old,25 were 2--4 and 9 over 4 years old. It was for the first time in 35 (72%) children. The cause of subluxation in 26 children was sudden traction on the forearm (54.2%) and in 10 was injury (20.8%). These were 12 with unknown cause (25%). Reduction was accomplished by maneuver in all patients. It is suggested that radial-head subluxation in children can be divided into two types,pronate and supinate. Therefore,reduction is performed by rapid supination or rapid pronation correspondingly. To make the diagnosis,the possibility of hidden fracture must be ruled out when a child has history of injury of atypical symptoms.