Answer:
Long head of Biceps Tendon Dislocation with Supraspinatus Tendon and Subscapularis TendonTear
Findings :
The Bicipital groove is seen to be empty with its normal occupant , the Biceps Tendon long head, displaced medially in the Axial images The tendon is seen abutting the superior glenohumeral ligament. Proton Density Coronal Images with fat suppression reveal complete tear of the supraspinatus tendon, a common associated finding with Biceps tendon dislocation. Strain/Partial Tear of the subscapularis tendon seen. Subacromial -subdletoid bursal distension seen
Discussion:
Long head of Biceps Tendon Dislocation in an important diagnosis which can be made easily by following the biceps tendon within the bicipital groove and noticing its absence from the groove. The tendon is normally held in position by the superior glenohumeral and coraccohumeral igaments. The tendon dislocates medially with ligamentous deficiency. The tendon of the long head of biceps can prolapse into the glenohumeral joint in case of subscapularis tendon deficency.The tendon may lie anterior to subscapularis tendon if tendon is intact . Displacement of the tendon out of its groove is almost always associated with rotator cuff tears.
Contributed By: Dr. Babu Peter MD, DNB
Associate Professor, Barnard Institute of Radiology, Chennai
Senior Consultant Radiologist, Aarthi Scans, Chennai
Long head of Biceps Tendon Dislocation with Supraspinatus Tendon and Subscapularis TendonTear
Findings :
The Bicipital groove is seen to be empty with its normal occupant , the Biceps Tendon long head, displaced medially in the Axial images The tendon is seen abutting the superior glenohumeral ligament. Proton Density Coronal Images with fat suppression reveal complete tear of the supraspinatus tendon, a common associated finding with Biceps tendon dislocation. Strain/Partial Tear of the subscapularis tendon seen. Subacromial -subdletoid bursal distension seen
Discussion:
Long head of Biceps Tendon Dislocation in an important diagnosis which can be made easily by following the biceps tendon within the bicipital groove and noticing its absence from the groove. The tendon is normally held in position by the superior glenohumeral and coraccohumeral igaments. The tendon dislocates medially with ligamentous deficiency. The tendon of the long head of biceps can prolapse into the glenohumeral joint in case of subscapularis tendon deficency.The tendon may lie anterior to subscapularis tendon if tendon is intact . Displacement of the tendon out of its groove is almost always associated with rotator cuff tears.
Contributed By: Dr. Babu Peter MD, DNB
Associate Professor, Barnard Institute of Radiology, Chennai
Senior Consultant Radiologist, Aarthi Scans, Chennai