The capsule's contribution to total hip construct stability--a finite element analysis.
The capsule's contribution to total hip construct stability--a finite element analysis.
复制标题
胶囊对总髋关节构建稳定性的贡献 - 有限元分析。
DOI：
10.1002/jor.21435
复制
发表时间：
2011-11
影响因子：
2.8
通讯作者：
Brown, Thomas D.
中科院分区：
文献类型：
--
作者：
Elkins, Jacob M.;Stroud, Nicholas J.;Rudert, M. James;Tochigi, Yuki;Pedersen, Douglas R.;Ellis, Benjamin J.;Callaghan, John J.;Weiss, Jeffrey A.;Brown, Thomas D.
在全髋关节置换术中，不稳定性是一个重要的问题，特别是当由于先前存在的病理或由于手术入路的必要性而导致关节囊结构受损时。建立了基于纤维方向的髋关节囊实验磨削有限元模型，并与已建立的三维撞击/脱位模型相结合。模型的有效性是通过与在伺服液压髋关节模拟器上进行的身体实验的结果非常相似来建立的。参数计算运行探索了囊膜厚度的分级水平、从囊膜的股骨或髋臼附着处的区域分离、囊膜实质的手术切开以及囊膜缺陷修复的影响。根据不同部位的不同，局部的包膜缺陷会导致不同程度的结构稳定性损害，在某些特殊情况下，会导致脱位阻力降低60%以上。在精心设计的修复后，结构的稳定性基本恢复到完整的包膜水平，尽管所涉及的缝合部位经常处于严重的失败风险中。这些参数模型结果强调了在全髋关节置换术中保留或牢固修复包膜结构的重要性，以最大限度地提高整体结构的稳定性。
Instability is a significant concern in total hip arthroplasty, particularly when there is structural compromise of the capsule due to pre-existing pathology or due to necessities of surgical approach. An experimentally grounded fiber-direction-based finite element model of the hip capsule was developed, and was integrated with an established three-dimensional model of impingement/dislocation. Model validity was established by close similarity to results from a cadaveric experiment in a servohydraulic hip simulator. Parametric computational runs explored effects of graded levels of capsule thickness, of regional detachment from the capsule’s femoral or acetabular insertions, of surgical incisions of capsule substance, and of capsule defect repairs. Depending strongly upon the specific site, localized capsule defects caused varying degrees of construct stability compromise, with several specific situations involving over 60% decrement in dislocation resistance. Construct stability was returned substantially toward intact-capsule levels following well conceived repairs, although the suture sites involved were often at substantial risk of failure. These parametric model results underscore the importance of retaining or robustly repairing capsular structures in total hip arthroplasty, in order to maximize overall construct stability.
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DOI：
10.2106/00004623-200210000-00009
发表时间：
2002-10-01
影响因子：
5.3
作者：
Sioen, W;Simon, JP;Van Audekercke, R
通讯作者：
Van Audekercke, R
影响因子：
1.3
作者：
DIHLMANN, W;NEBEL, G
通讯作者：
NEBEL, G
DOI：
10.1097/01.blo.0000038476.05771.6c
发表时间：
2002-12-01
影响因子：
4.2
作者：
Masonis, JL;Bourne, RB
通讯作者：
Bourne, RB
影响因子：
3.5
作者：
Dixon, MC;Parsch, D;Scott, RD
通讯作者：
Scott, RD
DOI：
10.1080/10255849908907983
发表时间：
1999-01-01
影响因子：
1.6
作者：
Scifert, CHRISTOPHER F.;Brown, THOMAS D.;Callaghan, JOHN J.
通讯作者：
Callaghan, JOHN J.