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Rupture of a Bifurcated Distal Biceps TendonA Case Report
Greg Sassmannshausen, MD1; Scott D. Mair, MD1; Philip E. Blazar, MD2
1 Division of Orthopaedic Surgery, University of Kentucky Medical Center, K401 Kentucky Clinic, Lexington, Kentucky 40536. E-mail address for S.D. Mair: smair2@uky.edu
2 Department of Orthopaedics, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115
View Disclosures and Other Information
The authors did not receive grants or outside funding in support of their research or preparation of this manuscript. They did not receive payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity. No commercial entity paid or directed, or agreed to pay or direct, any benefits to any research fund, foundation, educational institution, or other charitable or nonprofit organization with which the authors are affiliated or associated.
Investigation performed at the University of Kentucky Medical Center, Lexington, Kentucky

The Journal of Bone and Joint Surgery, Incorporated
J Bone Joint Surg Am, 2004 Dec 01;86(12):2737-2740
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Typically, the biceps brachii originates proximally with two heads from the scapula that unite to form a common tendon that inserts into the radial tuberosity, with the bicipital aponeurosis inserting onto the ulna. Multiple anatomic anomalies of the biceps brachii muscle have been identified1-4. These variations are far more common at the muscular origin than at the insertion, with the muscle occasionally having accessory heads at its origin1,2,4. Much less commonly, anomalous insertions of the biceps have been described; these variations have included slips extending to the medial intermuscular septum, the medial epicondyle, the pronator teres, or the extensor carpi radialis brevis3,5. We are aware of only a single case report that has described the clinical relevance of these anomalies6, and their importance is unclear.
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