Development of Neuromonitoring Pedicle Screw - Results of Electrical Resistance and Neurophysiologic Test in Pig Model

To analyze the electrical resistance of a newly developed neuromonitoring pedicle screw (Neuro-PS) and to verify the electrophysiologic properties of the Neuro-PS in a pig model. We developed 2 types of the Neuro-PS in which a gold lead was located internally (type I) and externally (type II). We me...

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Veröffentlicht in:Neurospine 2021, 18(1), , pp.117-125
Hauptverfasser: Bang, Woo-Seok, Park, Jonghoo, Kim, Kyoung-Tae, Cho, Dae-Chul, Riew, K Daniel, Kim, Du-Hwan, Han, In-Bo, Hyun, Seung-Jae, Yoon, Do-Heum, Kim, Young-Baeg
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Sprache:eng
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Zusammenfassung:To analyze the electrical resistance of a newly developed neuromonitoring pedicle screw (Neuro-PS) and to verify the electrophysiologic properties of the Neuro-PS in a pig model. We developed 2 types of the Neuro-PS in which a gold lead was located internally (type I) and externally (type II). We measured the electrical resistance of the Neuro-PS and the conventional screw and analyzed the electrical thresholds of triggered EMG (t-EMG) of each screw by intentionally penetrating the medial pedicle wall and contacting the exiting nerve root in a pig model. The electrical resistances of the Neuro-PS were remarkably lower than that of the conventional screw. In electrophysiologic testing, only the type II Neuro-PS under the leadnerve contact condition showed a significantly lower stimulation threshold as compared to the conventional screw. The Neuro-PS demonstrated lower electrical resistances than the conventional screw. The type II Neuro-PS under the lead-nerve contact condition showed a significantly lower stimulation threshold compared to that of the other screws in the t-EMG test.
ISSN:2586-6583
2586-6591
DOI:10.14245/ns.2040424.212