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Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Global+Spine+J 2015 ; 5 (5): 383-90 Nephropedia Template TP
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Surgical Anatomy of the Uncinate Process and Transverse Foramen Determined by Computed Tomography #MMPMID26430592
Park MS; Moon SH; Kim TH; Oh JK; Jung JK; Kim HJ; Riew KD
Global Spine J 2015[Oct]; 5 (5): 383-90 PMID26430592show ga
Study Design?Computed tomography?based cohort study.Objective?Although there are publications concerning the relationship between the vertebral artery and uncinate process, there is no practical guide detailing the dimensions of this region to use during decompression of the intervertebral foramen. The purpose of this study is to determine the anatomic parameters that can be used as a guide for thorough decompression of the intervertebral foramen.Methods?Fifty-one patients with three-dimensional computed tomography scans of the cervical spine from 2003 to 2012 were included. On axial views, we measured the distance from the midline to the medial and lateral cortices of the pedicle bilaterally from C3 to C7. On coronal reconstructed views, we measured the minimum height of the uncinate process from the cranial cortex of the pedicle adjacent to the posterior cortex of vertebral body and the maximal height of the uncinate process from the cranial cortex of the pedicle at the midportion of the vertebral body bilaterally from C3 to C7.Results?The mean distances from midline to the medial and lateral cortices of the pedicle were 10.1?±?1.3?mm and 13.9?±?1.5?mm, respectively. The mean minimum height of the uncinate process from the cranial cortex of the pedicle was 4.6?±?1.6?mm and the mean maximal height was 6.1?±?1.7 mm.Conclusions?Our results suggest that in most cases, one can thoroughly decompress the intervertebral foramen by removing the uncinate out to 13?mm laterally from the midline and 4?mm above the pedicle without violating the transverse foramen.