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Updated: Jun 27, 2026
A Teleoperated Robotic System-Assisted Percutaneous Transiliac-Transsacral Screw Fixation Technique
Published on: January 6, 2023
[Anatomic study of paths for transiliac screws in Galveston fixation]
Yuan-liang Sun1, Xi-guang Sang, Mu Li
1Department of Orthopaedics and Traumatics, Qilu Hospital of Shandong University, Jinan 250012, China.
Objective:
To describe the satisfactory intra-iliac paths in Galveston fixation combined with adult human cadaver and radiology study.
Methods:
Five adult cadavers with 10 hemisected pelvises were harvested. Parallelly to the Chiotic line, the bone every other 5 mm till the superior rim of the acetabulum (SRA) observing the morphologic characteristics of each cross-sections of the iliac columns was cut. Fifty consecutive and randomly selected patients were measured using three-dimensional computed tomographic reformations. Three paths' valid bony canal lengths (LVBC), contractions' inner widths and positions were evaluated.
Results:
The Path A with the longest LVBC (137 +/- 8) mm in male, (130 +/- 11) mm in female was the most satisfactory intra-iliac path according to both adult cadaver and radiographic measurement Path A and B allowed placement of 100 mm and 8 mm implants in male, 80 mm and 6 to 7 mm implants in female patients.
Conclusion:
The Path A, passing from the Click point towards the bottom of the anterior inferior iliac spine provides a longer and potentially safer anchor site compared with the traditional path.
