桡骨头半脱位好发于2～4岁小儿,成人少见,我们各遇到1例,报道如下.例1男性,30岁.踢足球时不慎跌倒,左上肢后伸,肘伸直手掌先触地,继之前臂旋前手背部着地,随即感肘部疼痛,肘关节不能屈曲,前臂不敢旋转.检查见在肘略屈,前臂旋前,肘后三角关系正常,肘部外侧轻肿胀,压痛明显,肘关节屈伸受限.例2女性,18岁.与他人打闹,左前臂被对方旋前势扭拽时突感肘部疼痛,不敢活动,检查结果 Radial head subluxation occurs in children aged 2 to 4, rare in adults, we have encountered a case, reported as follows .Example 1 Male, 30 years old .In football accidentally fell, the left upper limb stretched, elbow straight palm Touch the ground, followed by forearm rotation before the back of the hand, then feel the elbow pain, elbow flexion, forearm afraid to rotate .Check in the elbow slightly flexed forearm pronation, the elbow after the normal triangle, lateral elbow swelling , Tenderness is obvious, the elbow flexion and extension limited.Example 2 women, 18 years old.With other people slapstick, the left forearm was twisting the other side of the forward twisting sense of elbow pain, afraid to activity, test results