'Increased aseptic tibial failures in patients with a BMI e35 and well-aligned total knee arthroplasties'published in The Journal of Arthroplasty on July 2, 2015 draws the conclusion that the risk of revision total kneearthroplasties (TKA) due to aseptic tibial component loosening is two times greater in patients with a BMIe35 kg/m2, independent of age or limb alignment. This result confirms that obese patients are at a higher risk ofmechanical complications after performing TKA, independently from the risk of infection. This study suggeststhat the management of obese patients for TKA must be meticulous, careful, and should inspire from great bonedeformations in valgus of varus when choosing implants.