Accuracy of a hand-held surgical navigation system for tibial resection in total knee arthroplasty.

Background: Accuracy of total knee arthroplasty (TKA) implant placement and overall limb are important goals of TKA technique.

Methods: The accuracy and ease of use of an accelerometer-based hand-held navigation system for tibial resection during TKA was examined in 90 patients. Preoperative goals for sagittal alignment, navigation system assembly time, resection time, and tourniquet time were evaluated.