@article { author = {Williams, Alexis A. and Tischler, Eric H. and Sholder, Daniel and Nicholson, Thema A. and Maltenfort, Mitchell G. and Getz, Charles and Williams Jr, Gerald and Namdari, Surena}, title = {Identification of Risk Factors for Abnormal Postoperative Chemistry Labs after Primary Shoulder Arthroplasty}, journal = {The Archives of Bone and Joint Surgery}, volume = {6}, number = {4}, pages = {282-288}, year = {2018}, publisher = {Mashhad University of Medical Sciences, Iranian Society of Knee Surgery, Arthroscopy and Sports Tramatology,Iranian Orthopaedic Association}, issn = {2345-4644}, eissn = {2345-461X}, doi = {10.22038/abjs.2018.26686.1706}, abstract = {Purpose Purpose The purpose of this study was to determine patient-specific risk factors and clinical intervention rates for abnormal postoperative Chem-7 panels in shoulder arthroplasty patients. Methods Retrospectively, all primary anatomic total (aTSA) and reverse shoulder (RTSA) arthroplasties (between 2007-2013) performed at a single institution were identified. All patients underwent routine preoperative and postoperative day one (POD1) chemistry panels. Each clinically significant component of the Chem-7 panel was independently evaluated using a multivariate analysis to identify risk factors for abnormal results. Associated clinical intervention rates were also calculated. Results Data from 1,012 patients (248 RTSA; 764 aTSA) was analyzed. 5.4% of patients had at least one preoperative abnormal chemistry result. On multivariate analysis, patients with abnormal preoperative Chem-7 labs and a history of renal disease had significantly increased risk for abnormal POD1 labs (p <0.001). Although 25.6% (259/1,012) of patients had at least one abnormal POD1 lab result, the total postoperative clinical intervention rate was 15.1% (39/259). Conclusion Renal disease and a preoperative abnormal chemistry result are important risk factors for abnormal postoperative Chem-7. Optimizing renal status and correcting abnormal blood chemistry results preoperatively may reduce the incidence of abnormal postoperative chemistry results.}, keywords = {Blood chemistry,Laboratory order,Reverse shoulder arthroplasty,Risk stratification,Total Shoulder Arthroplasty}, url = {https://abjs.mums.ac.ir/article_10269.html}, eprint = {https://abjs.mums.ac.ir/article_10269_096bc45c2010bbc028a31e47d2bcc8de.pdf} }