The Journal of Bone and Joint Surgery (American). 2007;89:1844-1855.
© 2007 The Journal of Bone and Joint Surgery, Inc.
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Instructional Course Lecture

Biceps Tendon and Superior Labrum Injuries: Decision-Making

F. Alan Barber, MD1, Larry D. Field, MD2 and Richard K.N. Ryu, MD3

1 Plano Orthopedic and Sports Medicine Center, 5228 West Plano Parkway, Plano, TX 75093
2 Mississippi Sports Medicine and Orthopaedic Center, 1325 East Fortification Street, Jackson, MS 39202
3 533 East Micheltorena Street, Suite 204, Santa Barbara, CA 93103

An Instructional Course Lecture, American Academy of Orthopaedic Surgeons

The first 150 words of the full text of this article appear below.


   Biceps Anatomy and Function
 
The biceps tendon originates from the labrum and the supraglenoid tubercle of the scapula. The structure is intraarticular yet extrasynovial. It is widest at its origin and progressively narrows as it exits the bicipital groove. The proximal one-third of the biceps tendon has a high degree of innervation, with substance P and calcitonin gene-related peptides present, suggesting a rich sympathetic network1.

There is a spectrum of pathological conditions of the proximal part of the biceps, including tendinitis, SLAP (superior labrum anterior and posterior) lesions, biceps instability, and partial or complete ruptures. The origin of the long head of the biceps is variable and is approximately 9 cm long2. The proximal portion of the long head receives its blood supply primarily from the anterior circumflex humeral artery3. The biceps tendon passes posterior to the coracohumeral ligament and beneath the transverse humeral ligament as it courses . . . [Full Text of this Article]


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