PMC6387716_01
MRI T2-weighted of the right shoulder: coronal oblique view (a) showing a small size full thickness supraspinatus tear (black arrow), sagittal view (b), and axial view (c) showing tendinosis of the subscapularis muscle (yellow arrow).
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MRI evaluation revealed an approximately 1 cm tear in the rotator cuff, specifically in the supraspinatus muscle on its articular side, as well as tendinosis and subtle muscular signal change in distal subscapularis (Figure 1).
Intraoperative picture showing infraglenoid muscle (yellow arrow) originating from the anteroinferior aspect of glenoid (G), separate from subscapularis muscle (white arrow): (a) prior to glenoid preparation and (b) after glenoid reaming. G: glenoid; LHBT: long head of biceps tendon (transected).
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A distinct muscular structure was found at the anterior-inferior aspect of the glenoid rim (Figure 2), which was not determined as part of the glenoid labrum.