胸椎旁路法植入椎弓根螺钉的力学实验研究

doi:国家自然科学基金资助课题(30400447)

胸椎旁路法植入椎弓根螺钉的力学实验研究

付长峰，刘一^*，张绍昆，宋之明

吉林大学第一医院骨科，吉林长春130021

收稿日期:2005-04-18 修回日期:1900-01-01 出版日期:2006-03-28 发布日期:2006-03-28
通讯作者: 刘一^*

Biomechanics study on pull-out strength of thoracic extrapedicular screw

FU Chang-feng, LIU Yi^*，ZHANG Shao-kun, SONG Zhi-ming

Department of Orthopedics, First Hospital, Jilin University, Changchun 130021,China

Received:2005-04-18 Revised:1900-01-01 Online:2006-03-28 Published:2006-03-28
Contact: LIU Yi^*

摘要/Abstract

摘要： 目的：研究在胸椎节段应用椎弓根旁路法植入椎弓根螺钉的力学可行性。方法：5副成人新鲜尸体胸椎（T1-8）, 分解为40个单一椎体标本，每一标本左右两侧分别使用经椎弓根入路法（n=40）和旁路法（n=40）植入螺钉，并进行螺钉沿椎体矢状轴拔出强度的力学测量，比较两种方法的拔出强度。结果：旁路法植入螺钉后出现两种情况A和B，A：19个椎体（47.5%），为螺钉经横突后沿椎弓根外壁固定至椎体；B：21个椎体（52.5%），为螺钉经椎弓根外侧皮质至椎体。旁路法中A植入螺钉的拔出强度为（827.01±260.00）N，旁路法中B植入螺钉的拔出强度为（954.25±254.00）N。结合A、B两种情况，旁路法中植入螺钉的平均拔出强度为（890.63±342.00）N，胸椎经椎弓根入路螺钉的拔出强度为（1 001.23±220.00）N，二者比较，旁路法螺钉的平均拔出强度较经椎弓根入路法螺钉的拔出强度降低11.04%，但差异无显著性（P>0.05）。结论：胸椎椎弓根旁路法植入椎弓根螺钉在力学上是可行的。

关键词: 椎弓根螺钉, 旁路法

Abstract: Objective To identify the biomechanical feasibility of the extra-pedicular technique for screw insertion in thoracic. Methods Five fresh adult cadaveric thoracic spine from T1 to T8 were harvested and divided into forty single vertebrae. Pedicle screw and extra-pedicular screw were inserted in each specimen respectively. Pull-out strength of pedicle screw and extra-pedicular screw through sagital axis of vertebral were measured and compared statistically. Results Two kinds of insertion result were obserbed in extra-pedicular group,A and B. A:19 screws were inserted through transverse into vertebrae directly; B: 21 screws were inserted into vertebrae through lateral cortex of pedicle. In extrape-dicular group,along the sagital axis,the mean pull-out strength of A was (827.01±260.00) N, and the mean pull-out strength of B was (954.25±254.00) N . The mean pull-out strength of all screws in extra-pedicular group was (890.63±42.00) N, and the mean pull-out strength of screws in intrapedicular group was (1 001.23±220.00) N .Compared with pull-out strength of screws in intrapedicular group, the mean pull-out strength of all screws in extra-pedicular screw was decreased by 11.04%, the difference was no significant (P>0.05). Conclusion The extra-pedicular technique is feasible in biomechanics.

Key words: pedicle screw, extra-pedicular screw

中图分类号:

R681.5

付长峰，刘一，张绍昆，宋之明. 胸椎旁路法植入椎弓根螺钉的力学实验研究[J]. J4, 2006, 32(2): 275-277.

FU Chang-feng, LIU Yi，ZHANG Shao-kun, SONG Zhi-ming. Biomechanics study on pull-out strength of thoracic extrapedicular screw[J]. J4, 2006, 32(2): 275-277.

[1]	袁天阳, 张郡, 刘钦毅. 经皮内镜椎板间入路椎间盘切除术治疗伴有钙化的L5S1腰椎间盘突出症15例报告及文献复习[J]. 吉林大学学报(医学版), 2018, 44(03): 615-619.
[2]	孙烁, 庄新明, 汪振宇, 曲志刚, 宋清旭, 张琪, 刘一. 间盘切除前椎间隙撑开在颈椎前路手术中的应用[J]. 吉林大学学报(医学版), 2018, 44(01): 131-136.
[3]	杨柏梁，郑泽龙，赵立君，曲圆. 颈前路减压植骨融合术与保守疗法治疗单节段颈椎间盘突出症的疗效评价[J]. 吉林大学学报(医学版), 2014, 40(04): 888-891.
[4]	符俏，虞乐华. L-氨基胍对体外培养退变椎间盘细胞中炎性因子水平的影响[J]. 吉林大学学报(医学版), 2014, 40(01): 35-38.
[5]	朱彤彤,林桂淼,范文静,刘光耀,赵丽华,赵丽晶,赵丽娟. 颈椎稳定性异常老龄小鼠脑海马神经细胞中Bcl-2和Bax的表达[J]. 吉林大学学报(医学版), 2013, 39(5): 884-887.
[6]	马宁，姜振宇，高云艳，刘涛，马红爽，张彦东，王凯. CXCR4/SDF-1反应轴与VEGF在强直性脊柱炎患者外周血单个核细胞中的表达及其相关性分析[J]. 吉林大学学报(医学版), 2013, 39(1): 117-121.
[7]	马金梁\|黄帆\|汪洋\|罗进勇\|邓忠良. 双表达重组腺病毒介导的骨形态发生蛋白2-9复合纳米羟基磷灰石/聚酰胺66融合器用于山羊椎间融合的效果评价[J]. J4, 2012, 38(6): 1086-1090.
[8]	孙翊夫\|李英普\|刘鹏\|潘肃\|程连杰\|张远鹰\|高忠礼 . 急性颈脊髓损伤患者早期气管切开治疗的意义[J]. J4, 2011, 37(6): 1133-1135.
[9]	曲扬，赵宝林，朱庆三. 椎管造影对腰椎管狭窄症定位诊断及治疗方法选择价值的再评估[J]. J4, 2009, 35(1): 177-180.
[10]	刘一，张金禄，张绍昆，王柏，潘润泽. 颈椎椎弓根螺钉置入孔道准确性的X线片判定方法[J]. J4, 2005, 31(1): 136-138.
[11]	张大旭，张娅婕，王恭路，张博，王丹. 三维动态瞬间牵引与传统成角持续牵引的临床研究[J]. J4, 2004, 30(3): 431-433.
[12]	沈煜\|沈惠良\|方秀统\|张文博. MRI对骨质疏松性椎体压缩骨折患者椎体终板和骨折椎体邻近间盘损伤的评估及其临床意义[J]. J4, 2012, 38(6): 1205-1208.
[13]	王喜良, 赵岩, 左媛, 肖宇龙, 霍洪军, 江建明, 闫慧博. 神经干细胞移植联合腹腔注射促红细胞生成素对横断性脊髓损伤大鼠神经轴突的修复作用[J]. 吉林大学学报(医学版), 2015, 41(01): 99-104.