Stemless Humeral Implants in Anatomic Total Shoulder Arthroplasty: The Future is Now

Abstract

ABSTRACT Anatomic total shoulder arthroplasty (TSA) is frequently used in patients with glenohumeral osteoarthritis and other shoulder degenerative joint disease for pain relief and improving shoulder function. Much research is underway to find ways of improving TSA. One area of interest is the design and characteristics of the humeral components, with a particular emphasis on the length of the humeral stem. Currently, there is significant interest and discussion around stemless humeral implants. Stemless humeral implants have many advantages, including greater preservation of bone stock, reduced blood loss and operative times, and reduced stress shielding compared to stemmed humeral components in TSA. As many surgeons are now using these implants, much studies have been conducted evaluating the functional outcomes, biomechanical properties, and complications of these stemless humeral implants, often in comparison to other stemmed humeral implants. Here, we aim to provide a concise review of the advantages, limitations, and future directions for stemless humeral implants.