Cattedra di Radiologia "R" - DICMI, Università di Genova, Genoa, Italy.
Eur Radiol. 2010 Jan;20(1):202-8. doi: 10.1007/s00330-009-1524-1. Epub 2009 Aug 6.
We demonstrate the US appearance of the distal biceps tendon bifurcation in normal cadavers and volunteers and in those affected by various disease processes. Three cadaveric specimens, 30 normal volunteers, and 75 patients were evaluated by means of US. Correlative MR imaging was obtained in normal volunteers and patients. In all cases US demonstrated the distal biceps tendon shaped by two separate tendons belonging to the short and long head of the biceps brachii muscle. Four patients had a complete rupture of the distal insertion of the biceps with retraction of the muscle belly. Four patients had partial tear of the distal biceps tendon with different US appearance. In two patients the partial tear involved the short head of the biceps brachii tendon, while in the other two patients, the long head was involved. Correlative MR imaging is also presented both in normal volunteers and patients. US changed the therapeutic management in the patients with partial tears involving the LH of the biceps. This is the first report in which ultrasound considers the distal biceps tendon bifurcation in detail. Isolated tears of one of these components can be identified by US. Knowledge of the distal biceps tendon bifurcation ultrasonographic anatomy and pathology has important diagnostic and therapeutic implications.
我们展示了正常尸体和志愿者以及受各种疾病影响的个体中，肱二头肌远端肌腱分叉的美国表现。通过超声评估了 3 个尸体标本、30 名正常志愿者和 75 名患者。在正常志愿者和患者中均获得了相关的磁共振成像。在所有情况下，超声均显示肱二头肌短头和长头的两条单独肌腱形成了远端的肱二头肌肌腱。4 例患者的肱二头肌远端附着处完全断裂，伴有肌腹回缩。4 例患者的肱二头肌远端肌腱部分撕裂，超声表现不同。在 2 例患者中，部分撕裂累及肱二头肌短头肌腱，而在另外 2 例患者中，长头肌腱受累。还展示了正常志愿者和患者的相关磁共振成像。超声改变了部分累及 LH 的肱二头肌患者的治疗管理。这是首次详细描述超声检查的远端肱二头肌肌腱分叉的报告。通过超声可以识别这些成分之一的孤立撕裂。了解远端肱二头肌肌腱分叉的超声解剖和病理学具有重要的诊断和治疗意义。
