Chronic biceps brachii (BB) tendinopathy is a rare cause of lameness in horses that can be challenging to diagnose and treat successfully. This pathology is typically insidious in onset and unresponsive to conservative treatment. A 12-year-old Quarter Horse gelding presented for chronic severe lameness of the left forelimb that was localised to the left shoulder area. The horse was unresponsive to conservative management and surgical exploration revealed a grossly enlarged proximal BB tendon, a thickened fibrotic bicipital bursa and adhesions between the tendon, humerus and bursa. With standing sedation and local anaesthesia, the adhesions were debrided and 10 cm of the affected tendon was excised. Immediately post-operatively, the left forelimb lameness dramatically decreased. The horse recovered well and after rehabilitation returned to the previous level of athletic performance without evidence of lameness or gait abnormality. In this case, tenectomy of the chronic unresponsive BB tendinopathy, with associated bursal fibrosis and humeral adhesions, was successful and resulted in a return to previous athletic performance without complications. Standing excision of the BB tendon may be a viable treatment option for chronic BB tendinopathy and associated conditions when there is significant compromise to the integrity of the BB tendon.

中文翻译：

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站立的肱二头肌腱切除术治疗与四分马阉割中的法氏囊纤维化和肱骨粘连相关的慢性肱二头肌腱病

慢性肱二头肌 (BB) 肌腱病是马跛行的罕见原因，很难成功诊断和治疗。这种病理通常起病隐匿，对保守治疗无反应。一头 12 岁的夸特马因左前肢慢性严重跛行而出现在左肩区域。这匹马对保守治疗没有反应，手术探查显示近端 BB 肌腱严重增大，纤维化二头肌滑囊增厚，肌腱、肱骨和滑囊之间有粘连。在站立镇静和局部麻醉的情况下，清除粘连并切除 10 cm 的受影响肌腱。手术后立即，左前肢跛行急剧减少。这匹马恢复良好，康复后恢复到先前的运动表现水平，没有跛足或步态异常的迹象。在这种情况下，慢性无反应性 BB 肌腱病（伴有相关的法氏囊纤维化和肱骨粘连）的肌腱切除术取得了成功，并且恢复了以前的运动表现，没有出现并发症。当 BB 肌腱的完整性严重受损时，BB 肌腱的站立切除可能是慢性 BB 肌腱病和相关疾病的可行治疗选择。成功并导致恢复到以前的运动表现而没有并发症。当 BB 肌腱的完整性严重受损时，BB 肌腱的站立切除可能是慢性 BB 肌腱病和相关疾病的可行治疗选择。成功并导致恢复到以前的运动表现而没有并发症。当 BB 肌腱的完整性严重受损时，BB 肌腱的站立切除可能是慢性 BB 肌腱病和相关疾病的可行治疗选择。