| 螺旋CT扫描下颈椎为下颈椎椎弓根螺钉的置入提供依据 |
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| 引用本文： | 骆立荣,赖志军,郭汉明,谢晞衷,钟兰生,武明鑫. 螺旋CT扫描下颈椎为下颈椎椎弓根螺钉的置入提供依据[J]. 临床医学, 2009, 29(3): 11-13 |
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| 作者姓名： | 骆立荣 赖志军 郭汉明 谢晞衷 钟兰生 武明鑫 |
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| 作者单位： | 1. 广东省惠州市惠阳区人民医院骨科,惠州,516001
2. 惠州市中心人民医院骨科 |
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| 摘 要： | 目的通过测量颈椎椎弓根尺寸和进钉点进钉角度，为置入椎钉提供依据。方法选择2004年12月至2005年10月我院和惠州市中心人民医院骨科收治的怀疑颈椎损伤患者60例，其中男30例，平均年龄（43±19）岁，女30例，平均年龄（42±15）岁。均排除颈椎病理改变。60例患者行颈椎CT扫描，扫描范围第2颈椎～第1胸椎，扫描电压140kV，200—250mA。结果颈椎椎弓根平均内径为1．3—3．3mm，颈椎椎弓根平均外径为4．0～7．0mm，最小的椎弓根宽度在女性第3颈椎椎体，最小的椎弓根外径为3．2mm，最大椎弓根宽是第7颈椎，男性为11．1mm，女性为6．6mm。平均内壁皮质骨厚度为1．5—1．9mm，平均椎弓根轴长度29．3～33．7mm，平均椎弓根长轴与中线的夹角40．6°－49．6°，颈椎椎弓根钉进钉点到中线的垂直距离平均为20．2～23．7mm。结论颈椎椎弓根螺钉的置入应行CT测量，螺钉角度接近50°，进钉角度尽可能偏外侧。
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| 关 键 词： | 颈椎 螺旋CT 临床分析 治疗方法 |
Transpedicular screw placement evaluated by axial computed tomography of the lower cervical pedicle |
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| LUO Lirong,LAI Zhijun,GUO Hanming,XIE Xizhong,ZHONG Lansheng,WU Mingxin. Transpedicular screw placement evaluated by axial computed tomography of the lower cervical pedicle[J]. Clinical Medicine, 2009, 29(3): 11-13 |
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| Authors: | LUO Lirong LAI Zhijun GUO Hanming XIE Xizhong ZHONG Lansheng WU Mingxin |
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| Affiliation: | LUO Li- rong ,LAI Zhijun, GUO Hanming, XIE Xizhong, ZHONG Lansheng, WU Mingxin. (1 Department of Orthopaedics, Huiyang District People＇s Hospital, Huizhou 516001, China;2 Department of Orthopaedics, Central Peoples Hospital of Huizhou ) |
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| Abstract: | Objective To provide a safe transpedicular screw trajectory by measuring the dimensions of the lower cervical pedicle and evaluating the entrance points and the insertion angles of transpedicular screws.Methods The dimensions of the pedicles(C3-C7) were determined in 60 patients with cervical spinal lesions from CT images.Change of pathology of cervical vertebra was excluded.CT scanning on cervical vertebra was performed in 60 patients with the range of C2-T1,electric pressure was 140 kV,200-250 mA,and dept... |
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| Keywords: | Cervical spine Three-dimension CT |
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