Avulsion fracture of the brachioradialis muscle origin at the proximal two-thirds of the lateral supraepicondylar ridge of the humerus is an extremely rare fracture with only 4 reported cases in the literature so far. In this article, we describe the case of a 50-year-old male patient who had sustained a closed fracture of the latter after falling from a height of 1.5 m on a flexed elbow and pronated hand. The patient was managed with immobilization of the elbow and wrist with a posterior splint in neutral position for 3 weeks, followed by wrist and elbow therapeutic mobilization sessions for 3 months. At the final follow-up, the patient had painless active and passive full range of motion of the elbow along with good flexion strength. The unique mechanism by which this avulsion fracture occurred is explained on the basis of the mode of injury, position of the limb, and structure and function of the brachioradialis muscle.
Case Rep Orthop Res 2021;4:250–254

中文翻译：

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肱桡肌起点外伤性撕脱性骨折一例并文献复习

肱骨外上髁上嵴近三分之二处的肱桡肌撕脱性骨折是一种极为罕见的骨折，迄今为止文献报道仅4例。在这篇文章中，我们描述了一名 50 岁男性患者的案例，他在弯曲的肘部和旋前的手上从 1.5 m 的高度跌落后导致后者闭合性骨折。患者的治疗是在中立位用后夹板固定肘部和腕部 3 周，然后进行 3 个月的腕部和肘部治疗性活动。末次随访时，患者肘关节主被动全幅度活动无痛，屈曲力量良好。这种撕脱性骨折发生的独特机制是根据损伤方式来解释的，
案例代表 Orthop Res 2021；4:250–254