Current concepts in patient specific implants for reverse shoulder arthroplasty.

In light of the increasing prevalence of reverse shoulder arthroplasty, it has become clear that standard off the shelf implants provide insufficient glenoid fixation in challenging primary and revision cases. Recent advancements in computed tomography scanning, software automation tools, and additive manufacturing have paved the way for patient specific implants in difficult cases for reverse shoulder arthroplasty. This review article aims to provide an overview of the current state of patient specific implants in reverse shoulder arthroplasty, discussing their design principles, manufacturing techniques, short-term clinical outcomes, and future directions.