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Journal of Orthopaedic Surgery and Research
Published in: Journal of Orthopaedic Surgery and Research 1/2018

Open Access 01-12-2018 | Research article

Proper detailed parameters for S1 sacral alar iliac screw placement in the Chinese population, a 3D imaging study

Authors: Yao Wang, Wenhao Hu, Fanqi Hu, Hao Zhang, Tianhao Wang, Yan Wang, Xuesong Zhang

Published in: Journal of Orthopaedic Surgery and Research | Issue 1/2018

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Abstract

Background

S1-AI technique may be used as a salvage technique in pelvic fixation of complex spinal deformity surgery. However, the proper detailed parameters in the Chinese population has not been analyzed before to instruct S1-AI screws placement and to ensure the safety of clinical application while the trajectory in pelvic changes significantly at each angle.

Results

The ideal S1AI screw trajectory could be obtained in 28 of 30 female patient images (93.3%) and in all of the male patient images (100%). The screws that have already been used clinically in S2AI pathways can be applied in S1AI fixations.

Conclusion

It is feasible to place S1AI screws in 93.3% of female Chinese adult patients and in all male Chinese patients. Preoperative CT reconstruction should be performed to evaluate proper trajectory parameters and to avoid anterior violation.
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Metadata
Title
Proper detailed parameters for S1 sacral alar iliac screw placement in the Chinese population, a 3D imaging study
Authors
Yao Wang
Wenhao Hu
Fanqi Hu
Hao Zhang
Tianhao Wang
Yan Wang
Xuesong Zhang
Publication date
01-12-2018
Publisher
BioMed Central
Published in
Journal of Orthopaedic Surgery and Research / Issue 1/2018
Electronic ISSN: 1749-799X
DOI
https://doi.org/10.1186/s13018-018-0739-8

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