Fig. (3) Illustration depicting steps in glenoid bone grafting. (A) Glenoid with significant posterior erosion. (B) Preparation of the anterior glenoid. (C) Bone graft placement in deficient area, temporarily held in place with drills. (D) Replacement of the drills with 3.5 mm cortical screws. (Adapted from Steinmann SP, Cofield RH. Bone grafting for glenoid deficiency in total shoulder replacement. Journal of shoulder and elbow surgery / American Shoulder and Elbow Surgeons [et al] 2000;9:361-7.).