INFLUENCE OF CLAMPING RIGIDITY ON THE LOAD DISTRIBUTION BETWEEN PAIRED INTERNAL SPINAL FIXATION DEVICES

被引：2

作者：

CALISSE, J ^{[1
]}

ROHLMANN, A ^{[1
]}

BERGMANN, G ^{[1
]}

机构：

[1] FREIEN UNIV BERLIN,ORTHOPAD KLIN & POLIKLIN,BIOMECH LAB,CLAYALLEE 229,D-14195 BERLIN,GERMANY

来源：

BIOMEDIZINISCHE TECHNIK | 1994年 / 39卷 / 05期

关键词：

INTERNAL SPINAL FIXATION DEVICE; FINITE ELEMENT METHOD; LOAD MEASURING; CLAMPING RIGIDITY;

D O I：

10.1515/bmte.1994.39.5.113

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 [生物医学工程];

摘要：

Paired internal spinal fixation devices are not necessarily loaded symmetrically when the vertebrae are unable to support one another directly. A finite element model has been developed to predict the influence of clamping rigidity on the load distribution. If the stiffness of one clamping element is significantly reduced, the corresponding implant will bear only about 30 percent of the outer bending moment. The theoretical results were confirmed experimentally with sensor-loaded internal spinal fixation devices.

引用

页码：113 / 116

页数：4