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Extra-articular origin of biceps brachii
1Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, New York, U.S.A. jhyman@pocatlanta.com
Summary
A rare variation of the long head of the biceps tendon was observed, potentially complicating shoulder surgery. Recognizing this aberrant anatomy ensures surgeons focus on pathology, not unusual structures.
Area of Science:
- Orthopedic Surgery
- Human Anatomy
Background:
- Anatomical variations in the long head of the biceps brachii tendon are documented.
- Some anomalies are linked to rotator cuff issues or surgical challenges.
Observation:
- A unique case presented a long head of the biceps tendon with a mesotendon.
- Alternatively, the tendon was integrated into the extra-articular glenohumeral joint capsule.
Findings:
- This anatomical variant can impede arthroscopic visualization and assessment of the biceps tendon.
- The patient's clinical outcome was successful despite the anomaly.
Implications:
- Awareness of this biceps tendon variation is crucial for surgeons.
- Accurate identification aids in precise surgical planning and treatment, avoiding confusion with pathology.