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- W2587562682 abstract "Introduction: Percutaneous cannulated screw placement (PCSP) is a safe method of internal fixation, indicated for pelvic ring fractures. Due to the close proximity of neurovascular structures to the path of the screw placed in either the Posterior elements (PE) or Anterior column (AC), pre-operative planning is needed to prevent injury. This study aims to develop a pre-operative protocol for the Australian population, regarding the safe number of screws and size of screw that may be placed. Additionally, results from the study may help identify patients at increased risk of injury during PCSP. Methods: All patients were from the Australian population and had been admitted into the emergency department at The Royal Melbourne Hospital. Control patients had no pathology in the pelvis, while treated group patients had pelvic ring fractures and were treated with PCSP. Safe corridor measurements of the PE and AC were taken in the control patients. Pelvic CT scans, taken as part of trauma protocol, were reconstructed using 3D modelling and the dimensions of the whole (3 dimensional) safe corridor measured. The accuracy of screw placement was determined in each treated patient. Accuracy was assessed by the screenshot method, the post-operative CT method or by both methods. In both methods, accuracy was taken as the deviation between the positions of the actual screw and planned screw. Results: There were 22 control patients and 12 treated patients. The mean ± (standard deviation, SD) minimum measurement of the safe corridor at the PE was 15.6 ± 2.3 mm (range 11.6 mm to 20.2 mm) and at the AC was 5.9 ±1.6 mm (range 3.0 mm to 10.0 mm). The mean ± (SD) accuracy of screw placement was 6.1 ± 5.3 mm and ranged from a displacement of 1.3 mm to 16.1 mm. Conclusion: The minimum dimensions of the safe corridor and the accuracy of screw placement occurred over a wide range. We recommend that dimensions of the safe corridor be assessed pre-operatively in every patient using 3D modelling to determine the safe number and size of screw that can be placed." @default.
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- W2587562682 date "2010-10-01" @default.
- W2587562682 modified "2023-09-24" @default.
- W2587562682 title "COMPUTER NAVIGATED PELVIC SCREW PLACEMENT IN PELVIC RING INJURY" @default.
- W2587562682 hasPublicationYear "2010" @default.
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