Safe Corridor for Sacroiliac Screw Insertion Can Be Found Quickly Without the Use of the Lateral Sacral View

Document Type : RESEARCH PAPER

Authors

1 Department of Orthopedics, Medical school, Shahid Beheshti University of medical sciences, Tehran, Iran

2 Bone Joint and Related Tissues Research Center, Akhtar Orthopedic Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Abstract

Background:Studies have proved that in addition to the inlet and outlet views, the intraoperative lateral sacral view
is required to ensure the correct entry point, reduce operating time, and lower radiation exposure. Considering the
complex anatomy of the sacrum, we showed a safe corridor for sacroiliac joint (SIJ) screw insertion that was accessible
using only inlet and outlet fluoroscopic views.
Methods: From 2013 to 2020, we enrolled 215 patients who underwent percutaneous SIJ screw insertion. Our
experience in SIJ screw insertion is presented using only two views (inlet and outlet). We reported on the radiation
exposure time, operating time, rate of screw malposition, neurologic injury, and revision surgery.
Results: The screw malposition rate was 5.5%, including 11 foraminal perforations and one perforated anterior sacral
cortex. Paresthesia after the surgery was observed in six patients (2.8%). No revision surgery or screw removal was
performed. The radiation exposure and operation time for each screw were 21 ± 4.5 s and 13.5 min, respectively.
Conclusion: The most anterior and the lowest part of the S1 vertebra can be easily found using intraoperative inlet
and outlet views. It is a safe corridor for SIJ screw insertion with low radiation time, neurologic injury, and revision rates.
Level of evidence: IV

Keywords

References

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The Archives of Bone and Joint Surgery
Volume 10, Issue 11
November 2022
Pages 959-963

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History

  • Receive Date: 02 September 2021
  • Revise Date: 13 March 2022
  • Accept Date: 14 March 2022
  • First Publish Date: 16 October 2022

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