Anil K Gupta1, Peter N Chalmers2, Zain Rahman2, Benjamin Bruce2, Joshua D Harris2, Frank McCormick2, Geoffrey D Abrams2, Gregory P Nicholson2. 1. Section of Shoulder and Elbow Surgery, Midwest Orthopaedics at Rush, Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, USA. Electronic address: anilgupta07@hotmail.com. 2. Section of Shoulder and Elbow Surgery, Midwest Orthopaedics at Rush, Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, USA.
Abstract
BACKGROUND: Body mass index (BMI) is an independent predictor of complications after hip and knee arthroplasty. Whether similar trends apply to patients undergoing reverse total shoulder arthroplasty (RTSA) is unknown. METHODS: A retrospective review of primary RTSAs with a minimum 90-day follow-up were included. Complications were classified as major or minor and medical or surgical. Patients were classified into 3 groups: normal BMI (BMI <25 kg/m(2)), overweight or mildly obese (BMI 25-35 kg/m(2)), and moderately or severely obese (BMI >35 kg/m(2)). RESULTS: Of the 119 patients met our inclusion criteria, 30 (25%) had a BMI of less than 25 kg/m(2); 65 (55%) had a BMI of 25 to 35 kg/m(2), and 24 (20%) had BMI exceeding 35 kg/m(2). Complications occurred in 30 patients (25%), comprising major in 11 (9%), minor in 19 (16%), surgical in 21 (18%), and medical in 14 (12%). The most common surgical complications were acute blood loss anemia requiring transfusion (8.4%) and dislocation (4.2%). The most common medical complications were atelectasis (2.5%) and acute renal insufficiency (2.5%). Patients with a BMI exceeding 35 kg/m(2) had a significantly higher overall complication rate (P < .05) and intraoperative blood loss (P = .05) than the other groups. Patients with BMI of less than 25 kg/m(2) had a greater overall complication rate than those with a BMI of 25 to 35 kg/m(2) (P < .05). Multivariate regression analysis demonstrated BMI was the only significant determinant of overall complication rates and medical complication rates (P < .05). CONCLUSION: Patients with a BMI exceeding 35 kg/m(2) (severely obese) or a BMI of less than 25 kg/m(2) have higher rates of complication after RTSA.
BACKGROUND: Body mass index (BMI) is an independent predictor of complications after hip and knee arthroplasty. Whether similar trends apply to patients undergoing reverse total shoulder arthroplasty (RTSA) is unknown. METHODS: A retrospective review of primary RTSAs with a minimum 90-day follow-up were included. Complications were classified as major or minor and medical or surgical. Patients were classified into 3 groups: normal BMI (BMI <25 kg/m(2)), overweight or mildly obese (BMI 25-35 kg/m(2)), and moderately or severely obese (BMI >35 kg/m(2)). RESULTS: Of the 119 patients met our inclusion criteria, 30 (25%) had a BMI of less than 25 kg/m(2); 65 (55%) had a BMI of 25 to 35 kg/m(2), and 24 (20%) had BMI exceeding 35 kg/m(2). Complications occurred in 30 patients (25%), comprising major in 11 (9%), minor in 19 (16%), surgical in 21 (18%), and medical in 14 (12%). The most common surgical complications were acute blood loss anemia requiring transfusion (8.4%) and dislocation (4.2%). The most common medical complications were atelectasis (2.5%) and acute renal insufficiency (2.5%). Patients with a BMI exceeding 35 kg/m(2) had a significantly higher overall complication rate (P < .05) and intraoperative blood loss (P = .05) than the other groups. Patients with BMI of less than 25 kg/m(2) had a greater overall complication rate than those with a BMI of 25 to 35 kg/m(2) (P < .05). Multivariate regression analysis demonstrated BMI was the only significant determinant of overall complication rates and medical complication rates (P < .05). CONCLUSION:Patients with a BMI exceeding 35 kg/m(2) (severely obese) or a BMI of less than 25 kg/m(2) have higher rates of complication after RTSA.
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