Isolated Avulsion Fracture of the Lesser Tuberosity of the Humerus: Case Report and Literature Review

Isolated avulsion fracture of the lesser tuberosity of the humerus is a rare injury. It is easily missed because the fracture is difficult to visualize in routine plain radiographs of the shoulder. This article reports a man who sustained a right shoulder injury after a fall. Physical examination found local tenderness over the anterior aspect of his right humerus. The initial plain radiographs of shoulder showed no fracture. However, the axillary view demonstrated a rare isolated avulsion fracture of the lesser tuberosity. He was treated nonoperatively with good clinical outcome.

中文摘要肱骨小結節撕脫骨折是一個罕見的創傷,並常有漏診的情況出現,因為常規的肩部x光片是很難看到骨折部份。本文報告一名男子因跌倒而引致右肩受創傷,臨床身體檢查發現局限性壓痛集中在肱骨前面位置, 最初常規的肩部x光片中顯示沒有骨折, 然而腋位x線檢查診斷出一個罕見的肱骨小結節撕脫骨折。 我們應用了非手術方法去治療這位病人並獲得良好之臨床果效。