Anterior dislocation of right shoulder. Right wrist pain.

CASE HISTORY

(33-year-old male) Anterior dislocation of right shoulder. Right wrist pain.

TECHNICAL FACTORS

Long- and short-axis fat- and water-weighted images were performed; 1.5T High Field Oval.

KEY IMAGES

CASE FINDINGS

Proximal biceps long head tendon intact. Thin posterosuperior labral tear. Anteroinferior labral and adjacent periosteal tear present consistent with Bankart lesion. Small area of high-grade bone contusion in the nearby anteroinferior glenoid present. Inferior glenoid and humeral neck attachments of the axillary capsule / IGHL are torn. Floating IGHL or anteroinferior glenoid labroligamentous separation. Prominent surrounding soft tissue swelling. Contusion/strain of the nearby teres major muscle. Subscapularis recess distention.

Hypertrophic strain/contusion of the distal supra and infraspinatus tendons present. There is an approximately 1.6 x 1 x 1mm interstitial tear at the distal supraspinatus at the footprint. Prominent concavity/impaction fracture of the posterosuperior humeral head present with large surrounding area of high-grade bone contusion and trabecular microfracture. High-grade bone contusion extends to the humeral neck.

Teres minor tendon intact. Mild distal subscapularis tendon strain present. Low-grade strain/contusion of the deltoid muscle and distal/lateral trapezius muscle present.

CASE CONCLUSION

• Anterior shoulder dislocation with Bankart lesion and large Hill-Sachs impaction fracture. High-grade bone contusion and trabecular microfracture in the humeral head and neck
• Hypertrophic strain / contusion of the distal supra and infraspinatus tendons. Tiny 1.6 x 1 x 1mm interstitial tear of the distal supraspinatus at the footprint
• Tears / detachment of the axillary capsule both from the humeral neck and inferior glenoid. Floating IGHL or anteroinferior glenoid labroligamentous separation