A BMI above 30 results in satisfying outcomes in patients undergoing fixed‐bearing lateral unicompartmental knee arthroplasty

Abstract

Although obesity has historically been described as a contraindication to UKA, improved outcomes with modern UKA implant designs have challenged this perception. Therefore, the classic contraindication of UKAs in patients with BMI > 30 kg/m² may not be justified. According to the present study, lateral UKA patients with BMI > 30 kg/m² had satisfactory patient-reported outcome measures compared to non-obese patients on a long term with survival rates comparable to medial UKA. Obese patients should not be excluded from the benefit of lateral UKA surgery.