Computer-assisted pedicle screw placement for thoracolumbar spine fracture with separate spinal reference clamp placement and registration

Surgical Neurology
Hung-Chen WangTao-Chen Lee

Abstract

The objective of the study was to improve the accuracy of computer-assisted pedicle screw installation in the spine. This study evaluates the accuracy of computer-assisted pedicle screw placement with separate spinal reference clamp placement and registration on each instrumented vertebra for thoracolumbar spine fractures. Postoperative radiographs and CT scans assessed the accuracy of pedicle screw placement in 21 adult patients on each instrumented vertebra. Screw placements were graded as good if the screws were placed in the central core of the pedicle and the cancellous portion of the body. Screw placements were graded as fair if the screws were placed slightly eccentrically, causing erosion of the pedicular cortex, and with less than a 2-mm perforation of the pedicular cortex. Screw placements were graded as poor if screws were placed eccentrically with a large portion of the screw extending outside the cortical margin of the pedicle and with more than a 2-mm perforation of the pedicular cortex. A total of 140 image-guided pedicle screws were placed in 21 patients: 78 in the thoracic and 62 in the lumbar spine. Of the 140 pedicle screw placements, 96.4% (135/140) were categorized as good; 3.6% (5/140), fair; and 0% were p...Continue Reading

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Citations

Sep 21, 2013·Clinical Orthopaedics and Related Research·Xiaobang Hu, Isador H Lieberman
Nov 19, 2014·Indian Journal of Orthopaedics·Saurabh KapoorAnshul Goe
Sep 9, 2011·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·Ioannis D GelalisTheodoros A Xenakis
Sep 15, 2012·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·Xiaobang HuIsador H Lieberman
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Sep 10, 2011·Neurosurgery·Samer GhostineJ Patrick Johnson
Mar 30, 2017·Neurosurgery·Samuel C OverleyPaul M Arnold

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