经胸椎椎弓根-肋骨途径置钉固定中上位胸椎  

Placement of screw fixation through pedicle-rib approach in upper thoracic vertebrae

作　　者：洪有志[1,2] 吴小涛[1] 庄苏阳[1] 洪鑫[1] 刘夕友 

机构地区：[1]东南大学附属中大医院骨科,江苏210009 [2]安徽和县人民医院骨科

出　　处：《脊柱外科杂志》2013年第1期40-44,共5页Journal of Spinal Surgery

基　　金：江苏省卫生厅社会发展基金资助(H200759)

摘　　要：目的探讨经椎弓根-肋骨途径置钉的安全性和牢靠性,找出较理想的进钉点。方法 6具成人胸椎尸体随机分为3组,A组经椎弓根途径置钉,B、C 2组以不同的进钉点经椎弓根-肋骨途径置钉。对3组螺钉的位置、钉道总长度及各组成部分的长度行影像学测量。结果 B、C 2组的误置率明显低于A组,B、C 2组间的误置率相当。B、C 2组钉道的总长度明显长于A组,B、C 2组间的钉道总长度相当。B组钉道的非骨性部分长度占钉道总长的百分比明显低于C组。结论经椎弓根-肋骨途径置钉固定中上位胸椎的安全性和牢靠性有一定保障,横突中外1/3头侧是较为理想的进钉点。Objective Study on the safety and solidity for the placement of screw fixation through pedicle-rih approach in upper thoracic vertebrae and the ideal marking. Methods Six enlbalmed human cadavefic thoracic spines were randomly divided into 3 groups. Standard pedicle screws technique was used in Group A and pedicle-rib approach was adopted in Group B and C,hut mark ing for Group B and C were different. After setting screws, following data based on imageology were obtained,which included screw Iocation ,toted length of screw channel in 3 groups, and length of various components of screw path in Group B and C. Results Misplacement rate of Group B and C were significantly lower than Group A . Misplacement rate of Group B and C was sinfilar. The total length of the screw channel in Group A was shorter than Groups B and C, and that in Group B and C was not significantly different. Non-bony part of the screw channel was significantly lower in Group B than Group C. Conclusion The placement of screw fixation through pedicle-rib approach in upper thoracic vertebrae is safe and effective. The upper of transverse processes in the outer 1/3 shouhl he selected as an ideal nmrking to enter vertebrae in pedicle-rib approach.

关 键 词：胸椎 脊柱疾病 内固定器 

分 类 号：R681.532[医药卫生—骨科学]