Gait variability measurements in lumbar spinal stenosis patients: part B. Preoperative versus postoperative gait variability

被引：19

作者：

Papadakis, N. C. ^{[1
]}

Christakis, D. G. ^{[1
]}

Tzagarakis, G. N. ^{[1
]}

Chlouverakis, G. I. ^{[2
]}

Kampanis, N. A. ^{[3
]}

Stergiopoulos, K. N. ^{[4
]}

Katonis, P. G. ^{[4
]}

机构：

[1] TEI Crete, Biomech Lab, Iraklion, Greece

[2] Univ Crete, Biostat Lab, Iraklion, Greece

[3] FORTH, IACM, Iraklion, Crete, Greece

[4] Univ Crete, Univ Hosp Heraklion, Dept Orthoped, Voutes, Crete, Greece

来源：

PHYSIOLOGICAL MEASUREMENT | 2009年 / 30卷 / 11期

关键词：

variability; differential entropy; accelerometer; gait analysis; postoperative estimation; movement disorders; lumbar spinal stenosis; SURGERY; FUSION; INSTRUMENTATION;

D O I：

10.1088/0967-3334/30/11/004

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

The objective of this study was to assess the gait variability of lumbar spinal stenosis (LSS) patients and to evaluate its postoperative progression. The hypothesis was that LSS patients' preoperative gait variability in the frequency domain was higher than the corresponding postoperative. A tri-axial accelerometer sensor was used for the gait measurement and a spectral differential entropy algorithm was used to measure the gait variability. Twelve subjects with LSS were measured before and after surgery. Preoperative measurements were performed 2 days before surgery. Postoperative measurements were performed 6 and 12 months after surgery. Preoperative gait variability was higher than the corresponding postoperative. Also, in most cases, gait variability appeared to decrease throughout the year.

引用

页码：1187 / 1195

页数：9

共 21 条

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