1病例报告例1，男，14岁。跑步时突感右大腿根部剧痛，有滚关节屈曲功能受限，于1996年9月4日就诊，入院诊断为股直肌拉伤。给予患肢制动、理疗、对症治疗，10d后疼痛无缓解，骨盆X线片示右骼前下棘有一游离骨片，切开复位内固定治疗，术后效果良好，临床治愈。例2，男，16岁。 1 case report 1, male, 14 years old. Sudden sense of sensation when running the right thigh pain, there is limited function of rolling joint flexion, on September 4, 1996 treatment, admitted to hospital diagnosed with rectus femoris strangulation. Give limb immobilization, physical therapy, symptomatic treatment, pain relief after 10d, pelvic X-ray showed right anterior inferior spine have a free bone slices, open reduction and internal fixation treatment, the effect is good, clinical cure. Example 2, male, 16 years old.