| Anatomic comparison of transarticular screws with lateral mass screws in cervical vertebrae |
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| 引用本文： | 刘观燚,徐荣明,马维虎,阮永平,孙韶华,黄雷. Anatomic comparison of transarticular screws with lateral mass screws in cervical vertebrae[J]. 中华创伤杂志(英文版), 2007, 10(2) |
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| 作者姓名： | 刘观燚 徐荣明 马维虎 阮永平 孙韶华 黄雷 |
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| 作者单位： | Department of Orthopedics Ningbo Sixth People's Hospital，Ningbo 315040，China，Department of Orthopedics，Ningbo Sixth People's Hospital，Ningbo 315040，China，Department of Orthopedics，Ningbo Sixth People's Hospital，Ningbo 315040，China，Department of Orthopedics，Ningbo Sixth People's Hospital，Ningbo 315040，China，Department of Orthopedics，Ningbo Sixth People's Hospital，Ningbo 315040，China，Department of Orthopedics，Ningbo Sixth People's Hospital，Ningbo 315040，China |
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| 摘 要： | Objective:To compare the potential incidence of nerve root (ventral and dorsal ramus) injury caused by cervical transarticular screws and Roy-Camille lateral mass screws. Methods:Insertion techniques with Klekamp transarticular screws and Roy-Camille lateral mass screws were respectively performed in this study. Each technique involved four specimens and 40 screws, which were inserted from C3 to C7. And 20-mm-long screws were used to overpenetrate the ventral cortex. The anterolateral aspect of the cervical spine was carefully dissected to allow observation of the screw-ramus relationship. Results : The overall percentage of nerve invasion was significantly lower with Klekamp (45 %) technique than with Roy-Camille (85%) technique (P<0.05). The largest percentage of nerve invasion for Klekamp transarticular screws was found at the dorsal ramus (25%), followed by the ventral ramus (15%) and the bifurcation of the ventral dorsal ramus (5 %). The largest percentage of nerve invasion for Roy-Camille lateral mass screws was found at the ventral ramus (80 %). Conclusion : The potential risk of nerve root invasion is lower with Klekamp transarticular screws than with Roy-Camille lateral mass screws.
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Anatomic comparison of transarticular screws with lateral mass screws in cervical vertebrae |
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| LIU Guan-yi,XU Rong-ming,MA Wei-hu,RUAN Yong-ping,SUN Shao-hua,HUANG Lei. Anatomic comparison of transarticular screws with lateral mass screws in cervical vertebrae[J]. Chinese journal of traumatology, 2007, 10(2) |
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| Authors: | LIU Guan-yi XU Rong-ming MA Wei-hu RUAN Yong-ping SUN Shao-hua HUANG Lei |
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| Abstract: | Objective:To compare the potential incidence of nerve root (ventral and dorsal ramus) injury caused by cervical transarticular screws and Roy-Camille lateral mass screws. Methods:Insertion techniques with Klekamp transarticular screws and Roy-Camille lateral mass screws were respectively performed in this study. Each technique involved four specimens and 40 screws, which were inserted from C3 to C7. And 20-mm-long screws were used to overpenetrate the ventral cortex. The anterolateral aspect of the cervical spine was carefully dissected to allow observation of the screw-ramus relationship. Results : The overall percentage of nerve invasion was significantly lower with Klekamp (45 %) technique than with Roy-Camille (85%) technique (P<0.05). The largest percentage of nerve invasion for Klekamp transarticular screws was found at the dorsal ramus (25%), followed by the ventral ramus (15%) and the bifurcation of the ventral dorsal ramus (5 %). The largest percentage of nerve invasion for Roy-Camille lateral mass screws was found at the ventral ramus (80 %). Conclusion : The potential risk of nerve root invasion is lower with Klekamp transarticular screws than with Roy-Camille lateral mass screws. |
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| Keywords: | Cervical vertebrae Fixators internal Anatomy Transarticular screws |
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