SPIRE spinous process stabilization plate: biomechanical evaluation of a novel technology - Invited submission from the Joint Section Meeting on Disorders of the Spine and Peripheral Nerves, March 2005
SPIRE spinous process stabilization plate: biomechanical evaluation of a novel technology - Invited submission from the Joint Section Meeting on Disorders of the Spine and Peripheral Nerves, March 2005
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DOI：
10.3171/spi.2006.4.2.160
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发表时间：
2006-02-01
影响因子：
2.8
通讯作者：
Robinson, JC
中科院分区：
文献类型：
--
作者：
Wang, JC;Spenciner, D;Robinson, JC
物体。作者研究了一种新型棘突稳定钢板(CD Horizon Spire Spine System)的生物力学性能，并与其他后路固定方法进行了比较。10个功能性腰椎节段在10种不同的条件下承受非破坏性准静态载荷：完整、失稳(摘除)、单独安装棘突钢板(SPP)、单独前柱支撑(ACS)、ACS+SPP、ACS+后路经椎板螺钉(PTFS)、ACS+单侧椎弓根螺钉和棒(UPSR)、ACS+双椎弓根螺钉和棒(BPSR)、单纯UPSR或单纯BPSR。采用重复测量、单因素方差分析的方法比较僵硬程度和活动范围(ROM)数据，屈伸关节活动度最大的结构为ACS/SPP为4.14度，而ACS/UPSR固定为5.75度，ACS/BPSR固定为5.03度，完整脊柱为10.13度。单独使用螺旋板也能提供更大的屈曲和伸展僵硬，与其他后路固定选择相比，活动度更小。无论有无前交叉韧带，BPSR内固定在侧弯和轴向旋转方面都是最坚硬的结构。SPP固定组和UPSR固定组在抵抗侧弯和轴向旋转力方面具有同等的抗侧弯和轴向旋转力的能力。尖顶钢板有效地稳定了脊柱，与其他固定技术相比，测试结果更有利，这些固定技术执行起来更耗时，固有风险更大。
Object. The authors studied the biomechanical properties of a novel spinous process stabilization plate (CD HORIZON SPIRE Spinal System) and present the results in comparison with those of other posterior fixation methods.Methods. Ten functional cadaveric lumbar segments were subjected to nondestructive quasistatic loading forces in 10 different conditions: intact, destabilized (discectomy), fitted with spinous process plate (SPP) alone, with anterior-column support (ACS) alone, ACS with SPP, ACS with posterior translaminar facet screw (PTFS) fixation, ACS with unilateral pedicle screw and rod (UPSR) fixation, ACS with bilateral pedicle screw and rod (BPSR) fixation, UPSR alone, or BPSR alone. Stiffness and range of motion (ROM) data were compared using a repeated-measures, one-way analysis of variance.The construct with greatest mean limitation of flexion-extension ROM was ACS/SPP at 4.14 degrees whereas it was 5.75 degrees for ACS/UPSR fixation, 5.03 degrees for ACS/BPSR fixation, and 10.13 degrees for the intact spine. The SPIRE plate alone also provided greater flexion and extension stiffness, with less ROM than other posterior stabilization options. Fixation with BPSR with or without ACS resulted in the stiffest construct in lateral bending and axial rotation. The SPP and UPSR fixation groups were equivalent in resisting lateral bending and axial rotation forces with or without ACS.Conclusions. The SPIRE plate effectively stabilized the spine, and the test results compare favorably with other fixation techniques that are more time consuming to perform and have greater inherent risks.