Introducing Mako Total Knee, the newest application for the Mako System. In a cadaveric study, this application demonstrated the potential to increase the accuracy of TKA bone cuts and component placement to plan, even for an experienced user of manual instrumentation who is new to robotic technology. On average, Mako Total Knee final bone cuts and final component positions were 5.0 and 3.1 times more precise to plan than the manual total knee arthroplasty control, respectively.4
Mako Total Knee demonstrated soft tissue protection, including no ligament disruption to the PCL, MCL, LCL, and patella ligament, and did not require tibial subluxation or patella eversion for visualization during cutting, in a cadaveric study.5
Our U.S. market-leading Triathlon Total Knee System has demonstrated 99% survivorship in a ten-year study6, with over 2 million implanted worldwide.7
• Accuracy = Mean Value of Measurements
• Precision = Standard Deviation of Measurements
Comparison of RATKA and MTKA mean cuts and implant position to plan for all 6 matched pairs (n=6) and last 3 matched pairs (n=3). For final bone cut to plan, on the femur, A=Anterior, AC=Anterior Chamfer, D=Distal, PC=Posterior Chamfer, and P=Posterior, and on the tibia, T=Tibia. For final component position to plan, F-I=Femoral Implant, T-I=Tibial Implant. V/V=varus or valgus, F/E=flexion or extension, I/E=internal or external, andA/P=anterior or posterior slope. Error bars represent standard deviation. *Indicates a significant difference between RATKA and MTKA for n=6, with RATKA having less variance.
RATKA has the potential to increase the accuracy of TKA bonecuts and component placement to plan, even for an experienced user of manual instrumentation who is new to robotic technology.
A) Manually performed TKA with arrow pointing to PCL, with no bone island preparation.
B) Robotically performed TKA, with bone island preparation in front of PCL and corresponding tibial view from Implant Planning page (showing implant plan to the actual boney anatomy, with remaining bone island). Black arrow points to PCL. White arrows outline bone island.