This Article
Right arrow Full Text (PDF)
Right arrow Letters to the Editor: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when Letters to the Editor are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My File Cabinet
Right arrow Download to citation manager
Right arrowReprints and Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Vaccaro, A. R.
Right arrow Articles by Cotler, J. M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Vaccaro, A. R.
Right arrow Articles by Cotler, J. M.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Technorati  
What's this?

The Journal of Bone and Joint Surgery, Vol 77, Issue 8 1193-1199, Copyright © 1995 by Journal of Bone and Joint Surgery, Inc

JOURNAL CONTENTS

Placement of pedicle screws in the thoracic spine. Part I: Morphometric analysis of the thoracic vertebrae

AR Vaccaro, SJ Rizzolo, TJ Allardyce, M Ramsey, J Salvo, RA Balderston and JM Cotler
Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.

We studied the morphology of the thoracic vertebrae in the spines of seventeen human cadavera in order to define parameters that could be used as guidelines for the placement of hooks and screws in the pedicles to obtain internal fixation. We also reviewed computerized tomographic scans of nineteen thoracic spines in living patients who had no evidence of any vertebral deformity. The transverse diameter of the pedicle, which helps to determine the size of the screw, ranged from a mean (and standard deviation) of 4.5 +/- 1.2 millimeters in the fourth thoracic vertebra to a mean of 7.8 +/- 2.0 millimeters in the twelfth thoracic vertebra. The pedicles were inclined anteromedially throughout the thoracic spine, and the angle ranged from 0.3 degree toward the midline in the twelfth thoracic vertebra to 13.9 degrees in the fourth thoracic vertebra. The morphometric data revealed wide variations in the dimensions of the pedicles, demonstrating the importance of accurate preoperative imaging with transaxial computerized tomographic scans to visualize the precise osseous margins and angles of insertion of the thoracic pedicles.
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Technorati Technorati    What's this?


This article has been cited by other articles:


Home page
 JBJSHome page
U. R. Liljenqvist, T. Allkemper, L. Hackenberg, T. M. Link, J. Steinbeck, and H. F.H. Halm
Analysis of Vertebral Morphology in Idiopathic Scoliosis with Use of Magnetic Resonance Imaging and Multiplanar Reconstruction
J. Bone Joint Surg. Am., March 1, 2002; 84(3): 359 - 368.
[Abstract] [Full Text]