Better Outcomes in Severe and Morbid Obese Patients (BMI>35 kgm2)‎ in Primary Endo-Model Rotating-Hinge Total Knee Arthroplasty

Abstract EN

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.