Bone cutting errors in total knee arthroplasty
Bone cutting errors in total knee arthroplasty
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DOI：
10.1054/arth.2002.33564
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发表时间：
2002-09-01
影响因子：
3.5
通讯作者：
McGraw, RW
中科院分区：
文献类型：
--
作者：
Plaskos, C;Hodgson, AJ;McGraw, RW
尽管实现精确的植入物对线对于全膝关节置换术的良好结局至关重要，但之前尚未测量截骨过程对整体变异性的贡献，8名具有不同数量全膝关节置换术经验的骨科医生对19具尸体股骨和胫骨进行了85次切除，并将所得切割表面的平面与导向平面进行了比较。对于专家和受训者截骨一致性，内翻-外翻对线变异性范围为0.4度至0.8度SD。对于两个外科医生组，内翻-外翻对线变异性约为1.3度SD。对于经验丰富的外科医生，开槽截骨导向器降低了变异性并消除了矢状面的偏倚，但并未显著改善额状面对准变异性。根据截骨和导向器类型，导向器移动占总截骨误差的10%至40%。
Although achieving precise implant alignment is crucial for producing good outcomes in total knee arthroplasty, the contribution of the bone-cutting process to overall variability has not been measured previously, Eight orthopaedic surgeons with varying amounts of total knee arthroplasty experience performed 85 resections on 19 cadaver femora and tibiae, and the planes of the resulting cut surfaces were compared With the guide planes. Varus-valgus alignment variability ranged from 0.4degrees to 0.8degrees SD for expert and trainee cut cons. Sagittal variability, was approximately 1.3degrees SD for both surgeon groups. Slotted cutting guides reduced the variability and eliminated the bias in the sagittal plane for experienced surgeons but did not improve significantly frontal plane alignment variability. Guide movement contributed 10% to 40% of the total cutting error, depending on cut and guide type.