Motion of a mobile bearing knee allowing translation and rotation

被引：42

作者：

Walker, PS ^{[1
]}

Komistek, RD ^{[1
]}

Barrett, DS ^{[1
]}

Anderson, D ^{[1
]}

Dennis, DA ^{[1
]}

Sampson, M ^{[1
]}

机构：

[1] Cooper Union Res Fdn, New York, NY 10003 USA

来源：

JOURNAL OF ARTHROPLASTY | 2002年 / 17卷 / 01期

关键词：

total knee arthroplasty; mobile bearing knee; knee motion; knee kinematics; fluoroscopy;

D O I：

10.1054/arth.2002.28731

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 kinematics of a mobile bearing knee, which allowed 201 of rotation and 4.5 mm of anteroposterior translation, was measured for ascending and descending a step, deep-knee bend, normal walking, and twisting. A fluoroscopic technique was used, analyzed by 2 different methods. The rotations and displacements during the activities were similar to those of moderate-to-high constrained fixed bearing knees. The motion patterns were variable among test subjects and in general did not reproduce normal knee motion. Because of the freedom of anteroposterior translation and rotation in the design, however, each knee could determine its own neutral position and its own axis of internal-external rotation, depending on the activity.

引用

页码：11 / 19

页数：9

共 34 条

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