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Robotic Technology Enhances TKR

Robotic Technology Enhances TKR

According to recent estimates, more than 4.7 million Americans are currently living with a prosthetic knee. The incidence of total knee replacement (TKR) increased by 120% from 2000 to 2009, but it has also increased by 188% for patients aged 45 to 64 and by 89% for patients aged 65 to 84. As a result of the growing popularity of TKR, technical advances are of great interest to surgeons and patients alike. Improvements in Technology The Omninav surgical navigation system (OMNIlife science, Inc.) is a device that was designed for TKR. It provides computer-guided precision and features bone morphing technology to allow surgeons to build a patient-specific three-dimensional model of the knee in real time. This creates a virtual surgical plan that can be used before making critical bone cuts. Navigation algorithms and adjustable resection guides enable surgeons to reconstruct the mechanical axis of a limb. No preoperative CT or MRI is required. The technology is complemented by a patented cutting guide, an intelligent robotic tool that automatically positions instruments. This can be helpful to optimize implant alignment. The instrumentation allows for simple, micrometric adjustments that can be made intraoperatively to ensure alignment and balance the knee joint. Real-time assessment of limb alignment and soft tissue can be made at any time during the procedure. After administration of regional and/or general anesthesia, any preferred surgical approach may be used. Reference markers are pinned onto the tibia and femur; this is then tracked by the computer in a three-dimensional space. Surgeons can then measure specific locations of the exposed knee joint. This approach allows surgeons to get a detailed, accurate...
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