Name
Abstract | ||
|---|---|---|
The 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 ia 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. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1243/09544119JEIM268 | PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE |
Keywords | Field | DocType |
computer,aided surgery,virtual fluoroscopy,surgical navigation | Computer aided surgery,Navigation system,Fluoroscopy,Lumbar,Radiation exposure,Vertebra,Surgery,Fixation (histology),Medicine | Journal |
Volume | Issue | ISSN |
221 | H7 | 0954-4119 |
Citations | PageRank | References |
5 | 0.55 | 0 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| P Merloz | 1 | 63 | 9.06 |
| Jocelyne Troccaz | 2 | 626 | 163.13 |
| herve vouaillat | 3 | 5 | 0.55 |
| christian vasile | 4 | 5 | 0.55 |
| jerome tonetti | 5 | 37 | 6.61 |
| ahmad eid | 6 | 7 | 1.11 |
| S Plaweski | 7 | 5 | 0.55 |