Presentation
Shoulder pain when lifting the arm. No previous operations, no trauma.
Patient Data
High PD fs-signal within the supraspinatus tendon without extension of the tear to the bursal or articular side in keeping with a concealed interstitial delamination.
Missing anterior superior labrum in the 1-3 o'clock position with a thickened middle glenohumeral ligament (this anatomic variant is called "Buford complex"). No associated SLAP lesion.
Acromioclavicular joint arthrosis.
Case Discussion
Partial tears of the supraspinatus tendon can also be intrasubstance tears that do not involve the bursal or articular side of the supraspinatus tendon. These are called intrasubstance tears or concealed interstitial delamination.
A Buford complex is an anatomical variant with a missing anterior superior labrum in the 1-3 o'clock position and an associated thickened middle glenohumeral ligament. It is present in about 3% of the population and is associated with a higher rate of SLAP lesions due to unusually high stress on the superior labrum.
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