Fig. 1From: Arthroscopic bone graft procedure combined with arthroscopic subscapularis augmentation (ASA) for recurrent anterior instability with glenoid bone defect: a cadaver studyLeft shoulder, anterior on the right and posterior on the left, scope from antero-superior portal, hook guide from posterior portal. The Hook guide is parallel to the glenoid surface (a) and in the center of bone defect (b) (HH: humeral head, GL: glenoid)Back to article page