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IMPLANT FOR RESTORING NORMAL RANGE OF FLEXION AND KINEMATICS OF THE KNEE
IMPLANT FOR RESTORING NORMAL RANGE OF FLEXION AND KINEMATICS OF THE KNEE
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机译:恢复膝关节屈曲和运动学正常范围的植入物
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摘要
Embodiments of the invention provide knee prostheses (100) which more faithfully and closely replicate the function, anatomy and physiology of the normal human knee yielding a number of advantages. Among other things, such prostheses can provide an increased range of motion and function more normally particularly in extension, deep flexion and during normal gait. Knee prostheses according to various aspects of the invention recognize that during movement of the knee, particularly during flexion, the kinematics of the bones of the knee are a result of achieving equilibrium of the forces that cause motion of the knee. In addition, the shape of the articular surfaces acting in combination with forces imposed by various muscles, ligaments and tendons, determines the direction of the large contact forces.
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