Hawi, NaelTauber, MarkMessina, Michael JosephHabermeyer, PeterMartetschläger, Frank2016-11-182016Hawi, Nael, Mark Tauber, Michael Joseph Messina, Peter Habermeyer, and Frank Martetschläger. 2016. “Anatomic stemless shoulder arthroplasty and related outcomes: a systematic review.” BMC Musculoskeletal Disorders 17 (1): 376. doi:10.1186/s12891-016-1235-0. http://dx.doi.org/10.1186/s12891-016-1235-0.1471-2474http://nrs.harvard.edu/urn-3:HUL.InstRepos:29407625Background: The latest generation of shoulder arthroplasty includes canal-sparing respectively stemless designs that have been developed to allow restoration of the glenohumeral center of rotation independently from the shaft, and to avoid stem-related complications. The stemless prosthesis design has also recently been introduced for use in reverse arthroplasty systems. Methods: We systematically reviewed the literature for studies of currently available canal-sparing respectively stemless shoulder arthroplasty systems. From the identified series, we recorded the indications, outcome measures, and humeral-sided complications. Results: We identified 11 studies of canal-sparing respectively stemless anatomic shoulder arthroplasty implants, published between 2010 and 2016. These studies included 929 cases, and had a mean follow-up of 26 months (range, 6 to 72 months). The rates of humeral component-related complications ranged between 0 and 7.9 %. The studies reported only a few isolated cases of complications of the humeral component. Some arthroplasty systems are associated with radiological changes, but without any clinical relevance. Conclusions: All of the published studies of canal-sparing respectively stemless shoulder arthroplasty reported promising clinical and radiological outcomes in short to midterm follow-up. Long-term studies are needed to demonstrate the long-term value of these kind of implants.en-USShoulder arthroplastyStemlessCanal-sparingTotal shoulder arthroplastyShoulder arthritisPosttraumatic shoulder arthritisJournal Article2016-11-1810.1186/s12891-016-1235-0