2.1 Search Criteria

PubMed (S1 File) and SportDISCUS (S2 File) searches were conducted on June 3, 2016. The search was not limited to specific journals in order to thoroughly evaluate the current literature on shoulder arthroplasty interventions. Searches included the following PubMed MeSH Terms, “shoulder,” “shoulder pain,” “shoulder joint,” “athroplast*,” “hemiarthroplasty*,” “joint*,” “replace*,” “debridement,” “debrid*,” “surfac*,” “replac*,” and “resurfac*.” The search was limited to studies published between July 1, 2005 to December 31, 2015. The start date for the search was selected based on the ICMJE trial registration mandate stating that any clinical trial must be registered beginning July 1, 2005 [17].