Document Detail

Computer tomography assessment of pedicle screw placement in thoracic spine: comparison between free hand and a generic 3D-based navigation techniques.
MedLine Citation:
PMID:  23007929     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: Although pedicle screw fixation is a well-established technique for the lumbar spine, screw placement in the thoracic spine is more challenging because of the smaller pedicle size and more complex 3D anatomy. The intraoperative use of image guidance devices may allow surgeons a safer, more accurate method for placing thoracic pedicle screws while limiting radiation exposure. This generic 3D imaging technique is a new generation intraoperative CT imaging system designed without compromise to address the needs of a modern OR.
AIM: The aim of our study was to check the accuracy of this generic 3D navigated pedicle screw implants in comparison to free hand technique described by Roy-Camille at the thoracic spine using CT scans.
MATERIAL AND METHODS: The material of this study was divided into two groups: free hand group (group I) (18 patients; 108 screws) and 3D group (27 patients; 100 screws). The patients were operated upon from January 2009 to March 2010. Screw implantation was performed during internal fixation for fractures, tumors, and spondylodiscitis of the thoracic spine as well as for degenerative lumbar scoliosis.
RESULTS: The accuracy rate in our work was 89.8 % in the free hand group compared to 98 % in the generic 3D navigated group.
CONCLUSION: In conclusion, 3D navigation-assisted pedicle screw placement is superior to free hand technique in the thoracic spine.
Yasser Allam; J Silbermann; F Riese; R Greiner-Perth
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2012-09-25
Journal Detail:
Title:  European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society     Volume:  22     ISSN:  1432-0932     ISO Abbreviation:  Eur Spine J     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-03-04     Completed Date:  2013-08-26     Revised Date:  2014-03-09    
Medline Journal Info:
Nlm Unique ID:  9301980     Medline TA:  Eur Spine J     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  648-53     Citation Subset:  IM    
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MeSH Terms
Bone Screws*
Imaging, Three-Dimensional / methods*
Internal Fixators
Middle Aged
Orthopedic Procedures / methods*
Surgery, Computer-Assisted / methods*
Thoracic Vertebrae / radiography*,  surgery*
Treatment Outcome

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

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