Abstract
Instability of the long head of the biceps tendon is a common pathologic condition that may be difficult to identify using history, physical examination, advanced diagnostic imaging, and even arthroscopic diagnostic inspection. The goal of this technical article is to showcase important anatomic features, intra-articular arthroscopic assessment, and commonly associated pathologies that should raise concern for biceps instability. Techniques to address concurrent biceps and subscapularis lesions are also described.