E1109. Distal Biceps Tendon: An Updated MRI Assessment of Anatomy and Pathology
Authors
Seul Ki Lee;
St. Vincent's Hospital, The Catholic University of Korea
Background
The aim of this review is to provide a comprehensive summary of the updated findings on the anatomy of the distal biceps tendon, emphasizing its clinical significance, using MRI.
Educational Goals / Teaching Points
Detailed anatomy of the distal biceps tendon. MRI techniques for imaging. Disease spectrum and treatment. Differential diagnoses.
Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Detailed anatomy of the distal biceps tendon: two tendons and bicipital tuberosity, lacertus fibrosis (also known as bicipital aponeurosis), bicipital-radial bursa, neurovascular anatomy at the cubital fossa, lateral cutaneous nerve, posterior interosseous nerve (related to radial tunnel syndrome). MRI techniques for imaging FABS (flexed elbow, abducted shoulder and supinated foream). Disease spectrum and treatment: tendinopathy, tendon partial tears, tendon complete tears, bicipital aponeurosis intact/disrupted (coil sign), and other associated pathologic conditions in the cubital fossa. Differential diagnoses: musculotendinous injury, bicipito-radial bursitis, and brachialis muscle/tendon injury.
Conclusion
Although not as prevalent as diseases affecting the proximal biceps tendon at the shoulder, pathologic conditions affecting the distal biceps tendons are of clinical interest. A comprehensive understanding of the anatomy is crucial for accurately evaluating distal biceps tendon pathologies and their associated complications on MRI.
