Document Detail

Fluoroscopy-based navigation system in spine surgery.
MedLine Citation:
PMID:  18019467     Owner:  NLM     Status:  MEDLINE    
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 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.
P Merloz; J Troccaz; H Vouaillat; C Vasile; J Tonetti; A Eid; S Plaweski
Related Documents :
15246297 - Preliminary results of staged anterior debridement and reconstruction using titanium me...
12973147 - Prospective comparison of gait and trunk range of motion in adolescents with idiopathic...
12894887 - Clinical application of the trafix instrumentation in correcting scoliosis.
20543407 - Biomechanics of the intra-operative lateral decubitus position for the scoliotic spine:...
16481067 - Tracheal sleeve pneumonectomy: long-term outcome.
9405757 - The role of endoscopic therapy in chronic pancreatitis-induced common bile duct strictu...
Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine     Volume:  221     ISSN:  0954-4119     ISO Abbreviation:  Proc Inst Mech Eng H     Publication Date:  2007 Oct 
Date Detail:
Created Date:  2007-11-16     Completed Date:  2007-12-18     Revised Date:  2009-06-08    
Medline Journal Info:
Nlm Unique ID:  8908934     Medline TA:  Proc Inst Mech Eng H     Country:  England    
Other Details:
Languages:  eng     Pagination:  813-20     Citation Subset:  IM    
University Department of Orthopaedic and Trauma Surgery, CHU A. Michallon, BP 217, Grenoble Cedex 09, 38043, France.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Computer Graphics
Computer Simulation
Fluoroscopy / methods*
Laminectomy / instrumentation,  methods
Middle Aged
Models, Biological
Radiographic Image Interpretation, Computer-Assisted / methods*
Robotics / methods
Spinal Fusion / instrumentation,  methods*
Spine / radiography*,  surgery*
Surgery, Computer-Assisted / methods*
Treatment Outcome
User-Computer Interface*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  A navigation system for shoulder arthroscopic surgery.
Next Document:  Wanless voices concern for NHS future.