【摘要】 目的研究分析和总结椎弓根内固定的临床定位和进钉深度的探讨。方法CT椎体重建了解人字脊的出现率,用椎弓根螺钉系统内固定,腰椎弓根人字脊顶进钉68例。结果人字脊顶出现率为94.1%,全部病例椎弓根置入准确,深度达到要求,一次成功,复位良好,本组无一例马尾神经、神经根及大血管损伤。结论取用人字脊顶进钉法符合客观解剖定位,且有直观性和感觉性,准确率高,容易掌握。更多还原

【Abstract】 Objective To evaluate the location and depth of pedicle screw placement.Methods Computed tomography examination was used to evaluate the occurrence rate of V-shape crest,68 pedicle screws were placed in lumbar vertebrae penetrated the V-shape crest.Results The occurrence rate of V-shape crest was 94.1%,all screws were placed in lumbar vertebrae successfully without complications.Conclusion The entrance point of pedicle screw placement from V-shape crest is safe,easy to study and clinically feasible.更多还原