Researchers examined five patients with 173 pairs of tests and compared the threshold current required to trigger an electromyographic response during pedicle testing. Every track or screw was tested with both probes.
According to the study's abstract, both systems detected pedicle wall breaches using triggered electromyography. The recorded threshold current wasn't significantly different between the systems.
Related Articles on Spine Surgery:
Study: Intraoperative Monitoring Safe During Pediatric Spine Surgery
Study: Rapid Prototyping Increases Pedicle Screw Placement Accuracy, Decreases Operative Time
Study: Positional MRI Essential for Evaluation Spondylolysis and Spondylolisthesis
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Commercial and Custom Probes for Pedicle Screw Insertion Perform the Same, Despite Cost Differences
Written by Laura Miller | October 14, 2011
Although researchers found no significant differences when using commercially available stimulating pedicle probes or a custom-made probe for detecting pedicle wall breaches during screw insertion for scoliosis correction, there is a significant cost difference between the two, according to a report published in Spine.
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