××，女，4岁，宁夏银川郊区人。因跑动玩耍中不慎摔倒右手撑地致伤肘部半天来我院急诊。检查：右肘部肿胀显著，伸屈功能障碍，肘部后缘表皮有轻度挫伤，皮下有瘀斑，肱骨髁上压痛明显，挤压痛及叩击痛阳性，可触及骨擦音，患肢呈现半屈肘，前臂旋前，手指功能及皮肤感觉无异 × ×, female, 4 years old, Yinchuan, Ningxia suburbs. Because of running and playing inadvertently fell right hand sustained injury to the elbow for a long time to our hospital emergency room. Check: significant swelling of the right elbow, flexion and extension dysfunction, elbow trailing edge of the epidermis mild contusion, subcutaneous ecchymosis, humeral supracondylar tenderness, tender pain and percussion pain positive, can touch the bone fricative, patients Half limb flexion presented forearm pronation, finger function and skin feel the same