Fluoroscopy-based navigation system in spine surgery

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dc.creatorMerloz, Philippe
dc.creatorTroccaz, Jocelyne
dc.creatorVouaillat, Hervé
dc.creatorVasile, Christian
dc.creatorTonetti, Jérôme
dc.creatorEid, Ahmad
dc.creatorPlaweski, Stéphane
dc.date2007-11-28
dc.date.accessioned2026-07-07T08:45:51Z
dc.date.available2026-07-07T08:45:51Z
dc.descriptionThe variability in width, height, and spatial orientation of a spinal pedicle makes pedicle screw insertion a delicate operation. The aim of the current paper is to describe a computer-assisted surgical navigation system based on fluoroscopic X-ray image calibration and three-dimensional optical localizers in order to reduce radiation exposure while increasing accuracy and reliability of the surgical procedure for pedicle screw insertion. Instrumentation using transpedicular screw fixation was performed: in a first group, a conventional surgical procedure was carried out with 26 patients (138 screws); in a second group, a navigated surgical procedure (virtual fluoroscopy) was performed with 26 patients (140 screws). Evaluation of screw placement in every case was done by using plain X-rays and post-operative computer tomography scan. A 5 per cent cortex penetration (7 of 140 pedicle screws) occurred for the computer-assisted group. A 13 per cent penetration (18 of 138 pedicle screws) occurred for the non computer-assisted group. The radiation running time for each vertebra level (two screws) reached 3.5 s on average in the computer-assisted group and 11.5 s on average in the non computer-assisted group. The operative time for two screws on the same vertebra level reaches 10 min on average in the non computer-assisted group and 11.9 min on average in the computer-assisted group. The fluoroscopy-based (two-dimensional) navigation system for pedicle screw insertion is a safe and reliable procedure for surgery in the lower thoracic and lumbar spine.
dc.identifierhttps://arxiv.org/abs/0711.4516
dc.identifierhttp://arxiv.org/abs/0711.4516
dc.identifierProceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine 221, 7 (2007) 813-20
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/143094
dc.subjectOther Computer Science
dc.titleFluoroscopy-based navigation system in spine surgery
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