BACKGROUND: Orthopedic surgeons are reluctant to perform total knee (TKA) or hip ( @entity2445 ) arthroplasty on @entity1 with high body mass index (BMI). Recent studies are conflicting regarding the risk of @entity28 on perioperative @entity532 . Our study investigates the effect of BMI on perioperative @entity532 in @entity1 undergoing TKA and @entity2445 using a national risk-adjusted database. METHODS: A retrospective analysis was performed using the 2005-2007 American College of Surgeons-National Surgical Quality Improvement Program ACS-NSQIP dataset. Inclusion criteria were @entity1 between 18 and 90 y of age who underwent TKA or @entity2445 . @entity1 were stratified into five BMI categories: normal, overweight, @entity28 class I, @entity28 class II, and morbidly @entity28 . Demographic characteristics, length of stay, co-morbidities, and complication rates were compared across the BMI categories. RESULTS: A total of 1731 @entity1 met the inclusion criteria, with 66% and 34% undergoing TKA and @entity2445 , respectively. A majority were female (60%) and >60 y (70%) in age. Of the @entity1 who underwent TKA, 90% were either overweight or @entity28 , compared with 77% in those undergoing @entity2445 . The overall preoperative comorbidity rate was 73%. The complication and mortality rates were 7% and 0.4%, respectively. When stratifying perioperative @entity532 by BMI categories, no differences existed in the rates of @entity281 (P = 0.368), respiratory (P = 0.073), cardiac (P = 0.381), renal (P = 0.558), and systemic (P = 0.216) @entity532 . CONCLUSIONS: Our study demonstrates no statistical difference in perioperative complication rates in @entity1 undergoing TKA or @entity2445 across BMI categories. Performing TKA or @entity2445 on @entity1 with high BMI may increase mobility leading to improved quality of life.

Does BMI affect perioperative XXXX following total knee and hip arthroplasty?

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity28 :: ('MESH:D009765', 'Disease') :: ['obese', 'obesity'] @entity2445 :: ('MESH:D013619', 'Chemical') :: ['THA'] @entity532 :: ('MESH:D003925', 'Disease') :: ['complications'] @entity281 :: ('MESH:D007239', 'Disease') :: ['infection']
@entity532 :: (MESH:D003925,Disease) :: ['complications']
