Load Sharing and Ligament Strains in Balanced, Overstuffed and Understuffed UKA. A Validated Finite Element Analysis

被引：69

作者：

Innocenti, Bernardo ^{[1
,2
]}

Bilgen, Omer Faruk ^{[3
]}

Labey, Luc ^{[1
]}

van Lenthe, G. Harry ^{[4
]}

Sloten, Jos Vander ^{[4
]}

Catani, Fabio ^{[5
]}

机构：

[1] Smith&Nephew, European Ctr Knee Res, Leuven, Belgium

[2] Univ Libre Bruxelles, BEAMS Dept, B-1050 Brussels, Belgium

[3] Uludag Univ, Sch Med, Dept Orthopaedia, Bursa, Turkey

[4] Katholieke Univ Leuven, Biomech Sect, Leuven, Belgium

[5] Modena Policlin, Orthopaed & Traumatol Dept, Modena, Italy

来源：

JOURNAL OF ARTHROPLASTY | 2014年 / 29卷 / 07期

关键词：

UKA; overstuffing; understuffing; tibial stress; collateral ligament strain; UNICOMPARTMENTAL KNEE ARTHROPLASTY; FOLLOW-UP; NUMERICAL SENSITIVITY; 3-DIMENSIONAL MODEL; JOINT REPLACEMENT; STRESS-ANALYSIS; TIBIAL PLATEAU; EARLY FAILURE; 10-YEAR; BEHAVIOR;

D O I：

10.1016/j.arth.2014.01.020

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：

The aim of this study was to quantify the effects of understuffing and overstuffing UKA on bone stresses, load distribution and ligament strains. For that purpose, a numerical knee model of a cadaveric knee was developed and was validated against experimental measurements on that same knee. Good agreement was found among the numerical and experimental results. This study showed that, even if a medial UKA is well-aligned with normal soft tissue tension and with correct thickness of the tibia component, it induces a stiffness modification in the joint that alters the load distribution between the medial and lateral compartments, the bone stress and the ligament strain potentially leading to an osteoarthritic progression. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：1491 / 1498

页数：8

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