title: Percent body fat more associated with perioperative risks after total joint arthroplasty than body mass index.
abstract: Understanding the impact of obesity on elective total joint arthroplasty (TJA) remains critical. Perioperative outcomes were reviewed in 316 patients undergoing primary TJA. Higher percent body fat (PBF) was associated with postoperative blood transfusion, increased hospital length of stay (LOS) >3 days, and discharge to an extended care facility while no significant differences existed for BMI. Additionally, PBF of 43.5 was associated with a 2.4× greater likelihood of blood transfusion, PBF of 36.5 with a 1.9× greater likelihood for LOS >3 days, and PBF of 36.0 with a 1.4× greater likelihood for discharge to an extended care facility. PBF may be a more effective measure than BMI to use in screening for perioperative risks and acute outcomes associated with obese total joint patients.
authors: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina.
authors: Cameron K
authors: CK
authors: Ledford
authors: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina.
authors: Ramon A
authors: RA
authors: Ruberte Thiele
authors: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina.
authors: J Stephen
authors: JS
authors: Appleton
authors: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina.
authors: Robert J
authors: RJ
authors: Butler
authors: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina.
authors: Samuel S
authors: SS
authors: Wellman
authors: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina.
authors: David E
authors: DE
authors: Attarian
authors: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina.
authors: Robin M
authors: RM
authors: Queen
authors: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, North Carolina.
authors: Michael P
authors: MP
authors: Bolognesi
mesh_terms: D000273:Adipose Tissue; D019644:Arthroplasty, Replacement, Hip; D019645:Arthroplasty, Replacement, Knee; D001803:Blood Transfusion / Q000706:statistics & numerical data; D015992:Body Mass Index; D005260:Female; D006801:Humans; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications*; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D012866:Skilled Nursing Facilities / Q000706:statistics & numerical data; D016896:Treatment Outcome
keywords: body composition; body mass index; obesity; percent body fat; total joint arthroplasty outcomes; total joint arthroplasty perioperative risks