title: Cemented vs Cementless Total Knee Arthroplasty in Morbidly Obese Patients.
abstract: Primary total knee arthroplasty (TKA) in morbidly obese patients has been associated with greater postoperative complications. Cementless TKA has the potential for biologic fixation which may provide more durable long-term stability.
  
  
  
  This was a multicenter review of 298 TKAs in 292 morbidly obese patients (body mass index, >40) undergoing TKA, with 154 TKAs (149 patients) in the cemented and 144 TKAs (143 patients) in the cementless group.
  
  
  
  There were significantly more revisions in the cemented group (n = 20) than in the cementless group (n = 1; 13.0% vs 0.7%). There was a significantly higher incidence of aseptic loosening in the cemented cohort vs the cementless cohort (9 vs 0 TKAs). All revisions in the cementless cohort were due to infection (0.7%).
  
  
  
  Cementless fixation may be an alternative in the morbidly obese patient undergoing primary TKA.
authors.affiliation: Department of Orthopedics, Indiana University School of Medicine, Indianapolis, Indiana.
authors.forename: Deren T
authors.initials: DT
authors.lastname: Bagsby
authors.affiliation: Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland.
authors.forename: Kimona
authors.initials: K
authors.lastname: Issa
authors.affiliation: Jewish Physicians Group, KentuckyOne Health, Louisville, Kentucky.
authors.forename: Langan S
authors.initials: LS
authors.lastname: Smith
authors.affiliation: Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland.
authors.forename: Randa K
authors.initials: RK
authors.lastname: Elmallah
authors.affiliation: Department of Orthopedics, University of Louisville, Louisville, Kentucky.
authors.forename: Logan E
authors.initials: LE
authors.lastname: Mast
authors.affiliation: Mount Sinai Beth Israel, New York, New York.
authors.forename: Steven F
authors.initials: SF
authors.lastname: Harwin
authors.affiliation: Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland.
authors.forename: Michael A
authors.initials: MA
authors.lastname: Mont
authors.affiliation: Mercer University College of Medicine, Macon, Georgia.
authors.forename: Samrath J
authors.initials: SJ
authors.lastname: Bhimani
authors.affiliation: Department of Orthopedics, University of Louisville, Louisville, Kentucky.
authors.forename: Arthur L
authors.initials: AL
authors.lastname: Malkani
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D001843:Bone Cements; D005260:Female; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000150:complications*; D011183:Postoperative Complications / Q000209:etiology*; D016059:Range of Motion, Articular; D012086:Reoperation / Q000706:statistics & numerical data*; D012189:Retrospective Studies; D016896:Treatment Outcome
chemical_list: D001843:Bone Cements
keywords: cemented TKA; cementless TKA; complications; morbidly obese; total knee arthroplasty