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- W2209334219 abstract "Although most surgeons agree that the functional results obtained with modern total knee arthroplasty (TKA) are acceptable, it is clear that even with the most recent designs it is still impossible to duplicate the behaviour and functional performance of a normal knee. Recent kinematic studies have shown that modern TKA designs consistently provoke aberrant kinematics, mainly owing to the absence of the anterior cruciate ligament and the inability to maintain a functional posterior cruciate ligament (PCL). With regard to roll-back, PS cam-post designs appear to perform better than PCL retaining knees, but only in deeper degrees of flexion, usually only beyond 90°. Whether it is strictly necessary to try to obtain normal kinematics remains an open debate. Clearly, aberrant kinematics are the direct cause of the flexion limitation we see in many of our patients. Further, they probably contribute to many of the discomforts associated with modern TKA, such as difficulties descending stairs, rising from chairs, pivoting and thrusting. Improvements in current TKA designs should aim at introducing the concept of guided-motion (intrinsic mechanism) and at maintaining or restoring (extrinsic) determinants of kinematics, i.e. the cruciate ligaments, the joint configuration and the extra-articular structures." @default.
- W2209334219 created "2016-06-24" @default.
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- W2209334219 date "2002-03-01" @default.
- W2209334219 modified "2023-09-28" @default.
- W2209334219 title "HOW WELL ARE WE DOING WITH TOTAL KNEE ARTHROPLASTY" @default.
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