| 枢椎后路3种螺钉固定技术生物力学测试的对比研究 |
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Received:August 26, 2008
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| 作者 | Author | 单位 | Unit | E-Mail |
| 胡勇 |
HU Yong |
宁波市第六医院脊柱外科,浙江 宁波 315040 |
Department of Spinal Surgery,the 6th Hospital of Ningbo,Ningbo 315040,Zhejiang,China |
huyong610@163.com |
| 何贤峰 |
HE Xian-feng |
宁波市第六医院脊柱外科,浙江 宁波 315040 |
Department of Spinal Surgery,the 6th Hospital of Ningbo,Ningbo 315040,Zhejiang,China |
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| 马维虎 |
MA Wei-hu |
宁波市第六医院脊柱外科,浙江 宁波 315040 |
Department of Spinal Surgery,the 6th Hospital of Ningbo,Ningbo 315040,Zhejiang,China |
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| 徐荣明 |
XU Rong-ming |
宁波市第六医院脊柱外科,浙江 宁波 315040 |
Department of Spinal Surgery,the 6th Hospital of Ningbo,Ningbo 315040,Zhejiang,China |
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| 阮永平 |
RUAN Yong-ping |
宁波市第六医院脊柱外科,浙江 宁波 315040 |
Department of Spinal Surgery,the 6th Hospital of Ningbo,Ningbo 315040,Zhejiang,China |
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| 冯建翔 |
FENG Jian-xian |
宁波市第六医院脊柱外科,浙江 宁波 315040 |
Department of Spinal Surgery,the 6th Hospital of Ningbo,Ningbo 315040,Zhejiang,China |
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| 杨述华 |
YANG Shu-hua |
华中科技大学附属协和医院骨科 |
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| 期刊信息：《中国骨伤》2009年22卷，第1期，第17-20页 |
| DOI：doi:10.3969/j.issn.1003-0034.yyyy.nn.zzz |
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目的：评价单皮质和双皮质枢椎椎弓根螺钉、枢椎侧块螺钉和枢椎椎板螺钉的固定强度，为临床选择后路螺钉的固定方式提供生物力学依据。
方法：利用30具新鲜尸体枢椎标本，进行单皮质和双皮质的枢椎椎弓根螺钉、枢椎侧块螺钉、枢椎椎板螺钉固定，测试比较其螺钉拔出强度。
结果：双皮质枢椎椎弓根螺钉的拔出力量最大，为(1 255.8±381.9) N;单皮质枢椎椎弓根螺钉[(901.8±373.3)N]、双皮质枢椎侧块螺钉[(776.1±306.8) N]和双皮质枢椎椎板螺钉[(640.8±302.9) N]之间差异无统计学意义。
结论：枢椎后路螺钉固定宜首选椎弓根螺钉，枢椎侧块螺钉和枢椎椎板螺钉可作为枢椎后路补充固定技术，且以双皮质骨固定为宜。 |
| [关键词]:枢椎 椎弓根螺钉 侧块螺钉 椎板螺钉 生物力学 |
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| Comparison study of biomechanical test among fixation techniques of three types screw of posterior approach for C2 |
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Abstract:
Objective: To evaluate the screw pull-out strength of posterior C2 when the screw is fixed to C2 through the trans-pedicle or lateral mass or trans-laminar unicortically or bicortically,so as to provide biomechanical basis for the clinical application of posterior C2 screw fixation technique.
Methods: The pedicle screw,the lateral mass screw or the laminar screw was separately anchored into 30 fresh C2 specimens unicortically or bicortically. The screw pull-out strength of different fixation was tested and compared with the others.
Results: The average pull-out strength of C2 bicortical pedicle screw was(1 255.8±381.9) N,the strongest during all the methods. The mean pull-out strength of C2 unicortical pedicle screw,C2 bicortical lateral mass screw and C2 bicortical laminar screw were(901.8±373.3) N,(776.1±306.8) N and (640.8±302.9) N respectively,with no statistical difference.
Conclusion: Pedicle screw should be the first choice for the posterior fixation on axis. C2 lateral mass screw fixation and C2 laminar screw fixation can be another supplement choice and the screw had better be placed bicortically. |
| KEYWORDS:Axis Pedicle screw Lateral mass screw Laminar screw Biomechanics |
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| 引用本文，请按以下格式著录参考文献： |
| 中文格式: | 胡勇,何贤峰,马维虎,徐荣明,阮永平,冯建翔,杨述华.枢椎后路3种螺钉固定技术生物力学测试的对比研究[J].中国骨伤,2009,22(1):17~20 |
| 英文格式: | HU Yong,HE Xian-feng,MA Wei-hu,XU Rong-ming,RUAN Yong-ping,FENG Jian-xian,YANG Shu-hua.Comparison study of biomechanical test among fixation techniques of three types screw of posterior approach for C2[J].zhongguo gu shang / China J Orthop Trauma ,2009,22(1):17~20 |
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