摘要
目的探讨在儿童寰枢关节固定或枕颈融合手术中,采用3.0 mm和3.5 mm直径螺钉固定枢椎椎弓根和椎板的可行性。方法通过对一组连贯的113例2～9岁儿童上颈椎CT检查资料,排除了其中影像学诊断有异常报告的28例,对85例通过测量,获得了170个枢椎椎弓根和椎板直径大小数据,采用χ2检验,比较对直径3.0和3.5 mm直径螺钉固定的可行性。用同样的方法对获得的170个寰椎侧块峡部(即椎弓根)数据,采用χ2检验,比较直径3.0和3.5 mm直径螺钉固定的可行性。结果儿童枢椎有21.7%的椎弓根和62.9%椎板能容纳直径3.5 mm螺钉,差异有统计学意义(P<0.01,χ2=11.26);有43.5%椎弓根和78.8%椎板能容纳直径3.0 mm螺钉,差异有统计学意义(P<0.01,χ2=17.45);儿童寰椎侧块有92.9%能容纳直径3.5 mm螺钉,100%能容纳直径3.0 mm螺钉。结论在儿童寰枢关节固定或枕颈融合手术中,枢椎椎板螺钉固定可以作为一个可靠的固定方法。
Objective To determine the feasibility of placing screws of 3.0 mm and 3.5 mm in diameter into the C2 laminae and pedicles in a CI,2 or craniocervical arthrodesis. Methods The CT data of 85 children patients aged from 2 to 9 years were reviewed for this study who had undergone CT scans of the superior cervical vertebrae. A set of 170 diameter data were obtained respectively of C2 laminae and pedicles, as well as C1 lateral masses. The chi-square test was used to determine the feasibility of f＇Lxation with screws of 3.0 mm and 3.5 mm in diameter. Results In this group, 21.7% of the C2 pedicles and 62.9% of the C2 laminae were deemed suitable for 3.5 mm screw placement. The difference was statistically significant（P 〈0.01, X2=11.26）. 43.5% of the C2 pedieles and 78.8% of the C2 laminae were deemed suitable for 3.0 nun screw placement. The difference was also statistically significant （P 〈0.01, X2=-17.45）. 92.9% of the C1 lateral masses was deemed suitable for 3.5 ram screw placement, and 100% of the Ct lateral masses was deemed suitable for 3.0 mm screw placement. Conclusion Three ram screw in diameter placement for laminae requires the least anatomic restriction than that for pedicles in children. Axis laminae represent a viable fixation point in a C1,2 or craniocervical arthrodesis in children.
出处
《中国骨与关节损伤杂志》
2013年第1期13-15,共3页
Chinese Journal of Bone and Joint Injury
关键词
体层摄影术
X线计算机
寰枢椎
儿童
Computed tomography
X-ray computer
Atlantoaxial vertebrae
Children
