Quantifying the distribution of scapular bone density to guide optimal screw placement in reverse shoulder arthroplasty

Reverse total shoulder arthroplasty (RSA) surgery is an effective treatment strategy for patients with varying shoulder deficiencies. The purpose of this study was to quantify the distribution of bone density in the scapulae of patients undergoing reverse shoulder arthroplasty (RSA) to guide optimal screw placement. To achieve this aim, we selected regions of interest based on their potential glenoid baseplate screw positioning in RSA surgery and compared each regions density. We found the region of the coracoid lateral to the suprascapular notch is significantly less dense than the regions around the lateral border and scapular spine.