Doctors took a look at man's painful shoulder—they found the joint was missing
摘要
一名45岁建筑工人因右肩严重肿胀且疼痛加剧前往急诊。X光检查显示，其整个肩关节已消失：肱骨头完全缺失，上臂骨与关节脱离，呈游离状态。核磁共振进一步发现，其肩袖严重损毁，四条主要肌腱中有三条（冈上肌腱、冈下肌腱和肩胛下肌腱）出现全层撕裂。该病例报告发表于《新英格兰医学杂志》。
A 45-year-old construction worker went to the emergency department for his right shoulder, which was extremely swollen and becoming progressively more painful. Doctors took an X-ray to try to see what was causing the problem. But when the images came through, it was what they didn't see that explained the situation: His entire shoulder joint was gone, seemingly blasted apart into small, lingering pieces.
The shoulder joint is a ball-and-socket joint, with the sphere-like head of the upper arm bone (humerus) sitting in the socket of the shoulder blade. According to a case report in the New England Journal of Medicine, the man's X-ray showed that he no longer had a ball at all or an intact socket. His upper arm bone was detached from the joint, and the sphere-like top of his upper arm bone (humeral head) was completely gone. The broken, headless humerus was instead left to float freely in the man's arm, unattached to his upper body.
The man's shoulder, visibly swollen, and his X-ray showing destruction of the humeral head with a free-floating upper arm bone. Credit: New England Journal of Medicine, 2026Magnetic resonance imaging, meanwhile, found that the man's rotator cuff—the group of muscles and tendons that holds the upper arm firmly in the socket—was also destroyed. Three of the four main tendons (supraspinatus, infraspinatus, and subscapularis tendons) had full-thickness tears.
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