Multiple techniques exist for performance of Total Knee Arthroplasty (TKA). In April 2010, MyKnee® Patient-Specific Instrumentation (Medacta International, SA, Castel San Pietro, Switzerland) was approved for use in TKA in the United States. The present retrospective study seeks to evaluate early results of this technique. 29 consecutive patients (30 consecutive TKA operations) underwent TKA using the MyKnee cutting-blocks. These results were compared to 30 consecutive patients utilizing Standard TKA method. The findings represent the author's first MyKnee patients, and thus early learning curve for this technique. IRB approval for retrospective research was obtained prior to the evaluation of the data. 30 consecutive patients (14 males, 16 females) underwent TKA using the MyKnee technique. Pre-operative long-standing radiographs were taken and compared to 6-week post-operative radiographs. Intraoperative data includes the femoral and tibial resections thickness: Distal Medial femoral, Distal Lateral femoral, Posterior Medial Femoral, Posterior Lateral femoral, Medial Tibia, and Lateral Tibia. These were compared to the Planned vs. Actual resections. Tourniquet time was recorded as a measure of speed of surgery. These were compared to 30 consecutive patients using Conventional TKA technique. Intraoperative complications were also recorded.Introduction
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