Summary

Although the common location of the glenoid bone defect has been identified [Saito H et al. Am J Sports Med 2005], it is a challenge to manage patients with glenoid instability because the degree of glenoid bone loss (GBL) varies. There are many types of GBL, ranging from acute fracture to complete resorption. This article discusses a trial of 140 patients designed to (1) quantify GBL as well as attritional bone loss in recurrent anterior stability, (2) determine how much bone loss is remaining to repair the glenoid, and (3) determine the associations of demographic factors with GBL and attritional mass.