The impact of prior ipsilateral shoulder surgery on outcomes following total shoulder arthroplasty (TSA) and reverse total shoulder arthroplasty (RSA) is unknown. The purpose of this study was to determine the impact of prior shoulder surgery on patients undergoing TSA and RSA compared to patients without prior shoulder surgery. The hypothesis was that patients undergoing arthroplasty after prior ipsilateral shoulder surgery would have inferior outcomes with higher complication rates compared to patients undergoing arthroplasty without having undergone prior surgery. Seven-hundred fifteen consecutive patients undergoing TSA or RSA between 1/2010 and 5/2014 with a minimum 2-year follow-up were prospectively analyzed. All patients were evaluated with the American Shoulder and Elbow Society (ASES), Simple Shoulder Test (SST), Functional Score, Visual Analog Scale (VAS) outcomes assessments, as well as with physical examination including range of motion assessments. Outcomes in patients undergoing prior ipsilateral shoulder surgery (PS group) were compared to those in patients without history of prior surgery (NPS group). Statistical analysis was performed using one-way univariate and multivariate analysis of covariates (ANCOVA/MANCOVA) adjusting for age, Whitney-Mann U tests, and Chi-square or Fisher's exact test, with P<0.05 considered significant.Introduction
Materials and Methods
