Cemented vs Cementless Total Knee Arthroplasty in Morbidly Obese Patients

J Arthroplasty. 2016 Aug;31(8):1727-31. doi: 10.1016/j.arth.2016.01.025. Epub 2016 Jan 29.

Abstract

Background: 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.

Methods: 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.

Results: 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%).

Conclusion: Cementless fixation may be an alternative in the morbidly obese patient undergoing primary TKA.

Keywords: cemented TKA; cementless TKA; complications; morbidly obese; total knee arthroplasty.

Publication types

  • Multicenter Study

MeSH terms

  • Aged
  • Arthroplasty, Replacement, Knee / adverse effects*
  • Bone Cements*
  • Female
  • Humans
  • Knee Prosthesis
  • Male
  • Middle Aged
  • Obesity, Morbid / complications*
  • Postoperative Complications / etiology*
  • Range of Motion, Articular
  • Reoperation / statistics & numerical data*
  • Retrospective Studies
  • Treatment Outcome

Substances

  • Bone Cements