中国组织工程研究与临床康复2011，Vol.15Issue(48)：9040-9043,4.DOI:10.3969/j.issn.1673-8225.2011.48.027
模拟腰椎间盘髓核摘除后疲劳载荷对腰椎稳定性的影响
Effects of fatigue load on lumbar stability after simulated lumbar diskectomy
宋升 1芮永军 1孙振中 1华国军 2樊嵘2
作者信息
- 1. 无锡市第九人民医院,无锡市手外科,骨科,医院骨科,江苏省无锡市,214062
- 2. 解放军第101医院南京军区军事训练医学研究所,江苏省南京市,214044
- 折叠
摘要
Abstract
BACKGROUND: At present, there is not a unified standard about when to start ambulation after lumbar diskectomy. In the presentexperiment, we guided functional exercises of patients after lumbar diskectomy based on early biomechanical changes.OBJECTIVE: To explore the effects of fatigue load on lumbar stability after lumbar diskectomy.METHODS: Twelve functional spinal units were taken from 3 fresh porcine spines and divided into A group, B group and C grouprandomly. Fatigue load test was performed in all cases with different cycle load pressure s (500-1 000 N, 500-2 000 N, 500-3 000 N) after unilateral lumbar diskectomy.RESULTS AND CONCLUSION: There was no significant difference between A group and B group in disc height and stiffness (P >0.05), but the increased strain showed significant difference (P < 0.05); Disc height and stiffness in B group and C group wasreduced, strain was increased, and all these differences were significant (P < 0.01). Change ranges of disc height, strain andstiffness in the three groups were increased with the increase of the load pressure after cyclic tensile test (P < 0.05). The resultsshowed that a bigger fatigue load can damage lumbar stability after lumbar diskectomy.关键词
髓核摘除术/猪/疲劳载荷/腰椎/稳定性分类
医药卫生引用本文复制引用
宋升,芮永军,孙振中,华国军,樊嵘..模拟腰椎间盘髓核摘除后疲劳载荷对腰椎稳定性的影响[J].中国组织工程研究与临床康复,2011,15(48):9040-9043,4.
