Radiological assessment of the accuracy of screw placement for spinal fractures

doi:10.3969/j.issn.2095-4344.2017.23.022

Abstract

Abstract:

BACKGROUND: Volar locking plate is the domin Pedicle screw placement for spinal fractures with X-ray and CT assistant can optimize the accuracy of screw placement. Additionally, X-ray is cheap, repetitive and can reduce radiation injury, but has not been confirmed.

OBJECTIVE: To evaluate the effect and imaging evaluation of X-ray in pedicle screw placement for spinal fractures.

METHODS: Twenty patients with spinal fractures at T_1-8 levels in our hospital from November 2014 to December 2016 were enrolled. The needles were placed along the pedicle axis at the middle of the pedicle, vertebral posterior and vertebral anterior, and its position was recorded by C-arm X-ray, 100 pedicle screws were placed under C-arm X-ray, and then evaluated by CT to analyze the application effect of X-ray.

RESULTS AND CONCLUSION: The screw length between the actual placement at T₁, T₂, T₃, T₄, T₅, T₆, T₇, T₈ screw length under C-arm X-ray and virtual ones had no significant differences (P > 0.05), suggesting that X-ray can optimize the accuracy of screw placement. A total of 100 screws were placed, 94 screws were excellent, which were placed into the vertebral body completely, and the direction and depth were in accordance with the requirements. Six screws were good, some screws slightly worn out, but the cortical bone was less, and none was poor. No accident of pedicle violations was found. To conclude, C-arm X-ray-assisted screw placement for spinal fractures exhibits ideal outcomes.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

Key words: Tissue Engineering, Spine, Fractures, Bone

CLC Number:

R318

Li Hong-rui, Yang Dong-mei, Li Ning-ning, Wu Jie. Radiological assessment of the accuracy of screw placement for spinal fractures [J]. Chinese Journal of Tissue Engineering Research, 2017, 21(23): 3736-3740.

Figures/Tables 2

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