Effects of lower limb rotation on the measurement accuracy of coronal alignment in long-leg radiographs after total knee arthroplasty  

作　　者：Mieralimu Muertizha Baochao Ji Abudousaimi Aimaiti Nueralijiang Yushan Li Cao 

机构地区：[1]Department of Orthopedics,First Affiliated Hospital of Xinjiang Medical University,Urumqi,Xinjiang 830054,China

出　　处：《Chinese Medical Journal》2022年第5期619-621,共3页中华医学杂志（英文版）

摘　　要：Restoring proper lower limb alignment on the coronal plane after total knee arthroplasty(TKA)can decrease stress in the bone cement-implant interface,polyethylene wear,and implant loosening.Weight-bearing long-leg radiographs(LLRs)are used to assess the mechanical axis in the coronal plane,identify anatomic variations in the femur and tibia,and plan the degree of bone resection preoperatively.However,rotation or flexion of the lower limb may affect the accuracy of the measurement of alignment parameters from LLRs.Furthermore,known rotation-dependent linear changes can be used to relate the degree of lower limb rotation to the alignment parameters of the femur and tibia and the hip-knee-ankle(HKA)angle[1].

关 键 词：KNEE IMPLANT ROTATION 

分 类 号：R687.4[医药卫生—骨科学]