Single radius of curvature implant design enhances patient lower limb power output following total knee arthroplasty
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چکیده
Most knee implants are multi radius in design, incorporating a shifting centre of rotation of the knee as it moves through flexion. Recent advances in kinematic theory however suggest a single axis of flexion / extension is located in the distal femur. A recently launched TKA implant (Triathlon, Stryker US®), is based on this theory, adopting a single radius of curvature femoral component. It is suggested that this design allows superior patient function post-operatively, and specifically, that it results in enhanced efficiency of the quadriceps muscle group through a longer patello-femoral moment arm.
منابع مشابه
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تاریخ انتشار 2011