Lumbar Spine Instability
Lumbar Spine Instability
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腰椎不稳定
DOI：
10.1007/978-1-4613-9326-9_16
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
P. O'leary
中科院分区：
文献类型：
--
作者：
P. O'leary
本章介绍脊柱不稳的生物力学原理及其实际应用。为此目的，提出了一些关于不稳定的简化概念，并以具体的案例研究加以支持。这些概念包括纵向不稳定(L)--表现为椎间盘退变和椎间盘切除术后综合征中的间隙塌陷；平移不稳定(T)--典型的脊椎滑脱；角度不稳定(A)--如伴有楔形骨折的后凸畸形中所见；旋转不稳定(R)--典型的脊柱侧弯；以及复杂不稳定(C)--它是(T+L)或(T+L+R)的组合。
This chapter addresses the biomechanical principles of spinal instability and their practical application. For this purpose some simplified concepts of instability are suggested and supported by specific case studies. These concepts include longitudinal instability (L)—manifested by disc space collapse in disc degeneration and in the postdiscectomy syndrome; translational instability (T)—exemplified by spondylolisthesis; angular instability (A)—as is seen in the kyphotic deformity with wedge fractures; rotational instability (R)—exemplified by scoliosis; and complex instability (C)—which is a combination, either (T + L) or (T + L + R).