title: The Effect of BMI on 30 Day Outcomes Following Total Joint Arthroplasty.
abstract: Hip and knee arthroplasty (THA, TKA) are safe, effective procedures with reliable, reproducible outcomes. We aim to investigate obesity's effect on complications following arthroplasty surgery. Using the American College of Surgeons-National Surgical Quality Improvement Program database, 13,250 subjects were stratified into 5 groups based on BMI and matched for gender, age, surgery type and ASA class. Matched, multivariable generalized linear models adjusting for demographics and comorbidities demonstrated an association between elevated BMI and overall (P<0.001), medical (P=0.005), surgical complications (P<0.001), including superficial (P=0.019) and deep wound infection (P=0.040), return to OR (P=0.016) and time from OR to discharge (P=0.003). Elevated BMI increases risk for post-operative complications following total joint arthroplasty.
authors: Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois.
authors: Hasham M
authors: HM
authors: Alvi
authors: Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois.
authors: Rachel E
authors: RE
authors: Mednick
authors: Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois.
authors: Varun
authors: V
authors: Krishnan
authors: Biostatistics Collaboration Center, Department of Preventive Medicine, Northwestern University, Chicago, Illinois.
authors: Mary J
authors: MJ
authors: Kwasny
authors: Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois.
authors: Matthew D
authors: MD
authors: Beal
authors: Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois.
authors: David W
authors: DW
authors: Manning
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D015992:Body Mass Index; D015897:Comorbidity; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications*; D010359:Patient Readmission; D011183:Postoperative Complications / Q000453:epidemiology*; D012307:Risk Factors; D016896:Treatment Outcome
keywords: BMI; arthroplasty; complications; readmission; risk stratification