ArticleNorth American Spine Society journal2024
Obturator inlet and iliac oblique technique for safe, convenient, and reliable iliac screw placement.
Article in North American Spine Society journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Feasibility study of antegrade insertion of lateral compression type-II screws guided solely by the combined obturator-oblique outlet view.International orthopaedics · 2026Article
- Insufficient evaluation of S2 alar iliac screw malposition with the intraoperative inlet view: utility of the obturator inlet and iliac oblique views.Asian spine journal · 2026Article
- Examination under anesthesia in anterior posterior compression pelvic ring injuries; additional assessment of the posterior pelvic ring reveals occult sacroiliac joint instability.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2026Article
- [Measurement and clinical validation of safe distance for LC-Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2025Article
- Obturator inlet and iliac oblique fluoroscopic views allow for placement of longer iliac screws.North American Spine Society journal · 2025Article
- Percutaneous spinopelvic fixation technique using external fixation for focal kyphosis reduction in U-type sacral fractures: a case report.Journal of spine surgery (Hong Kong) · 2025Article
- Special screw corridors and imaging in pelvic ring trauma.Archives of orthopaedic and trauma surgery · 2025Review
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: There are many described techniques for the placement of posterior iliac screws for extension of lumbar posterior spinal instrumentation to the pelvis. However, each one has its limitations. We describe our technique for fluoroscopic guidance of iliac screw placement utilizing the obturator inlet and iliac oblique views as well as a detailed review of how to obtain and interpret these views for safe iliac screw placement. Methods: Retrospective chart review of patients undergoing iliac screw placement utilizing the obturator inlet and iliac oblique views as part of spine instrumentation between January 2019 and March 2022. Screw length and bony breaches are reported utilizing this technique. Results: Twelve patients underwent posterior lumbopelvic fixation with a total of 23 screws placed via either open or percutaneous technique. The mean screw length was 96.5 mm (Range 80-110, standard dev 7.75). There were no recorded breaches or recannulation attempts. Conclusions: We show how this technique is a much more convenient alternative to the placement of iliac screws under the obturator outlet oblique ("teardrop" view) which necessitates that the C-arm is in line with the instruments being placed. These described views can be used to place screws with either open or percutaneous techniques and with either the posterior superior iliac spine (PSIS) or S2 alar iliac (S2AI) starting points.
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