Department of Orthopaedic Surgery, UC Irvine Health, Irvine, California.
JBJS Case Connect. 2020 Apr-Jun;10(2):e0054. doi: 10.2106/JBJS.CC.19.00054.
A 46-year-old man presented with extensive swelling and ecchymosis of the arm and antecubital fossa after a 4-foot fall from a ladder in which he attempted to arrest his decent by grabbing onto a wooden ceiling beam. Ultrasound and magnetic resonance imaging confirmed a complete intrasubstance rupture of the biceps brachii. Nonoperative management was recommended and, at 9-week follow-up, the patient had resumed light weightlifting and demonstrated painless full active range of motion.
Uncommon complete intrasubstance biceps brachii ruptures can occur via an atypical mechanism of isotonic eccentric muscle contraction and satisfactory results may be realized through nonoperative management.
一位 46 岁男性从 4 英尺高的梯子上坠落，试图抓住木制天花板梁来阻止下降，导致手臂和肘前窝出现广泛肿胀和瘀斑。超声和磁共振成像证实肱二头肌完全肌内撕裂。建议行非手术治疗，随访 9 周时，患者已恢复轻重量举重且无痛全活动范围运动。
不常见的完全肌内肱二头肌撕裂可通过非典型的等张离心肌收缩机制发生，通过非手术治疗可能获得满意的效果。
