Custom Glenoid Baseplate to Address Massive Glenoid Bone Loss in Reverse Total Shoulder Arthroplasty

Abstract

Background: A patient-specific, 3-dimensional-printed, custom glenoid baseplate can be utilized to address severe glenoid deficiency in reverse total shoulder arthroplasty (rTSA). Indications: A 73-year-old woman with right shoulder pain, weakness, and decreased range of motion in the setting of glenohumeral arthritis with severe glenoid bone loss. Additionally, this implant system was used in a 77-year-old man undergoing conversion to rTSA in the setting of glenoid erosion following prior failed total shoulder arthroplasty. Technique Description: A standard deltopectoral approach is utilized. In the revision setting, prior components are removed. Adequate glenoid exposure is obtained to allow for positioning and implantation of the custom glenoid baseplate. The glenoid is prepared utilizing patient-specific guides and trials before the custom glenoid component is seated within the glenoid vault and fixated with locking screws. Compatible glenosphere and humeral components are utilized for the remainder of the surgical procedure, as performed standardly. Results: There were no immediate complications following surgery. Surgical management led to improvement in the patient's pain and shoulder function. Discussion/Conclusion: Patient-specific, 3-dimensional-printed, custom glenoid baseplates may be used to manage severe glenoid deformity and bone loss in patients indicated for primary or revision rTSA. Patient Consent Disclosure Statement: The author(s) attests that consent has been obtained from any patient(s) appearing in this publication. If the individual may be identifiable, the author(s) has included a statement of release or other written form of approval from the patient(s) with this submission for publication.