Kinematically aligned knee replacement is a surgical technique that aims to restore the natural alignment and motion of the knee joint. Unlike conventional knee replacement, which uses a mechanical axis to align the implant, kinematically aligned knee replacement uses a kinematic axis that matches the patient’s unique anatomy and pre-arthritic condition. This technique may offer better outcomes for some patients, such as improved function, range of motion, and satisfaction. However, it also has some challenges and limitations, such as increased complexity, variability, and risk of implant failure. Therefore, kinematically aligned knee replacement should be performed by experienced surgeons who can use appropriate tools and methods to achieve optimal results. Some of the tools that are used for this technique include calipers, patient-specific guides, navigation systems, and robotics. These tools help the surgeon measure the bone positions and resection thicknesses, align the components with the native joint lines, and balance the ligaments without release.
