Total knee arthroplasty has been an effective treatment for advanced degenerative joint disease. Traditional knee designs and surgical approaches have resulted in consistently high performance, but some patients may remain dissatisfied after their surgery. Several surgical innovations, including accelerometer-based navigation, patient-specific instrumentation, and robotic-assisted total knee ar...

Metallic debris from metal-on-metal bearings is a recognized mode of failure that may lead to implant loosening and periprosthetic soft tissue reactions. The sequelae of metallosis have been most commonly reported with respect to total hip arthroplasty. The authors report a rare case of metallosis following a hybrid metal-on-polyethylene total knee arthroplasty that used a porous tantalum tibia...

OBJECTIVE Severe bone loss associated with failed revision total knee arthroplasty is a challenging scenario. The pedicled fibular flap is a method to obtain vascularized bone for use in knee arthrodesis after failure of a total knee arthroplasty, with substantial loss of bone. METHODS We report 2 successful knee arthrodeses using this method in patients with infected, failed multiply revised...

BACKGROUND The aim of this study was to evaluate causes of unstable total knee arthroplasty and results of revision surgery. METHODS We retrospectively reviewed 24 knees that underwent a revision arthroplasty for unstable total knee arthroplasty. The average follow-up period was 33.8 months. We classified the instability and analyzed the treatment results according to its cause. Stress radiog...

Stiffness is an uncommon complication after total knee arthroplasty, but at the same time it is a disabling problem for many patients. Outcomes of revision surgery for a stiff knee following arthroplasty have not been well evaluated, to our knowledge. The purpose of this literature is to define prevalence of stiffness after primary total knee replacement and also to evaluate the efficacy of rev...