Compare the clinical and imaging efficacy of two surgical approaches in treating posterosuperior irreparable massive rotator cuff tears with high fatty infiltration of the supraspinatus and infraspinatus (Goutallier grade ≥ 3).
Compare the clinical and imaging efficacy of two surgical approaches in treating posterosuperior irreparable massive rotator cuff tears with high fatty infiltration of the supraspinatus and infraspinatus (Goutallier grade ≥ 3).