The Scientific World Journal (Jan 2012)

Better Outcomes in Severe and Morbid Obese Patients (BMI>35 kg/m2) in Primary Endo-Model Rotating-Hinge Total Knee Arthroplasty

  • Luis M. Lozano,
  • Vicente López,
  • José Ríos,
  • Dragos Popescu,
  • Pere Torner,
  • Félix Castillo,
  • Francisco Maculé

DOI
https://doi.org/10.1100/2012/249391
Journal volume & issue
Vol. 2012

Abstract

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The Endo-Model rotating-hinge prosthesis is preferably indicated as a primary implant in patients with advanced axial deviation of the lower limbs or unstable knees with severe bone defects. Outcomes were studied in 111 knees, operated in a three-year period; the mean followup was 28 months. Joint balance enhancement and limbs mechanical axis correction were achieved after surgery. There were 6 deep infections and 16 patients referred postoperative anterior knee pain. WOMAC index scores disaggregated by gender and BMI showed better outcomes in obese patients (specifically, those with a BMI of 35–40 kg/m2) and in men. Although the lack of a control group did not allow definite conclusions and despite a nonnegligible complication rate, our results reveal that the Endo-Model total knee arthroplasty can be a useful tool to deal with severe and morbid obese patients affected of severe gonarthrosis associated with marked axial deviations, ligament instability, or bone defects.