The optimal strategy for stable tibial fixation in revision total knee arthroplasty

被引:38
作者
Conditt, MA
Parsley, BS
Alexander, JW
Doherty, SD
Noble, PC
机构
[1] Baylor Coll Med, Inst Orthoped Res & Educ, Houston, TX 77030 USA
[2] Baylor Coll Med, Barnhart Dept Orthoped Surg, Houston, TX 77030 USA
关键词
revision total knee arthroplasty; tibial component; fixation; cementless;
D O I
10.1016/j.arth.2004.06.010
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
In revision total knee arthroplasty, the optimal strategy for stabilizing the tibial component in the face of proximal defects remains controversial. The stability of a revision tibial prosthesis was measured using a mechanical surrogate of the revision tibia, while varying the defect treatment proximally and the cortical engagement distally. An offset axial load in combination with an axial torque were applied to each specimen to simulate the stance phase of gait. it was found that, in revision total knee arthroplasty, the mechanical stability of tibial fixation is increased by the addition of a canal filling stem, especially in the presence of poor proximal bone. Proximal tibial coverage, even with a custom-fitted tibial component, adds little additional stability to a tibial tray stabilized by intramedullary engagement of a canal-filling stem. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码:113 / 118
页数:6
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