Biomechanical Study Comparing a New Combined Rod-plate System With Conventional Dual-rod and Plate Systems

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	Biomechanical Study Comparing a New Combined Rod-plate System With Conventional Dual-rod and Plate Systems
	Sha, Mo ; Ding, Zheng-Qi ; Ting, Hu S. ; Kang, Liang-qi ; Zhai, Wen-liang ; Liu, Hui ; Sha M(沙漠) ; Ding ZQ(丁真奇) ; Kang LQ(康两期) ; Zhai WL(翟文亮)
刊名	http://dx.doi.org/10.3928/01477447-20130122-28
	2013
关键词	THORACOLUMBAR BURST FRACTURES ANTERIOR SPINAL DEVICE KANEDA DEVICE IN-VITRO INSTRUMENTATION FIXATION STABILIZATION DECOMPRESSION CORPECTOMY FUSION
英文摘要	Key Foundation of Nanjing Army [09Z020, 10Z022]; Most anterior spinal instrumentation systems are designed as either a plate or dual-rod system and have corresponding limitations. Dual-rod designs may offer greater adjustability; however, this system also maintains a high profile and lacks a locking design. Plate systems are designed to be stiffer, but the fixed configuration is not adaptable to the variety of vertebral body shapes. The authors designed a new combined rod-plate system (D-rod) to overcome these limitations and compared its biomechanical performance with the conventional dual-rod and plate system. Eighteen pig spinal specimens were divided into 3 groups (6 per group). An L1 corpectomy was performed and fixed with the D-rod (group A; n=6), Z-plate (Sofamor Danek, Memphis, Tennessee) (group B; n=6), or Ventrofix (Synthes, Paoli, Pennsylvania) (group C; n=6) system. T13-L2 range of motion was measured with a 6 degrees of freedom (ie, flexion-extension, lateral bending, and axial rotation) spine simulator under pure moments of 6.0 Nm. The D-rod and Ventrofix specimens were significantly stiffer than the Z-plate specimens (P <.05) based on results obtained from lateral bending and flexion-extension tests. The D-rod and Z-plate specimens were significantly stiffer than the Ventrofix specimens (P <.05) in axial rotation. The D-rod combines the advantages of the plate and dual-rod systems, where the anterior rod exhibits the design of a low-profile locking plate, enhanced stability, and decreased interference of the surrounding vasculature. The posterior rods function in compression and distraction, and the dual-rod system offers greater adjustability and control over screw placement. The results indicate that it may provide adequate stability for anterior thoracolumbar reconstruction.
语种	英语
出版者	SLACK INC
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/93399]
专题	医学院－已发表论文
推荐引用方式 GB/T 7714	Sha, Mo,Ding, Zheng-Qi,Ting, Hu S.,et al. Biomechanical Study Comparing a New Combined Rod-plate System With Conventional Dual-rod and Plate Systems[J]. http://dx.doi.org/10.3928/01477447-20130122-28,2013.
APA	Sha, Mo.,Ding, Zheng-Qi.,Ting, Hu S..,Kang, Liang-qi.,Zhai, Wen-liang.,...&翟文亮.(2013).Biomechanical Study Comparing a New Combined Rod-plate System With Conventional Dual-rod and Plate Systems.http://dx.doi.org/10.3928/01477447-20130122-28.
MLA	Sha, Mo,et al."Biomechanical Study Comparing a New Combined Rod-plate System With Conventional Dual-rod and Plate Systems".http://dx.doi.org/10.3928/01477447-20130122-28 (2013).