| Title | Development of Neuro-Monitoring Pedicle Screw - Results of Electrical Resistance and Neurophysiologic Test in Pig Model. |
| Publication Type | Journal Article |
| Year of Publication | 2020 |
| Authors | Bang W-S, Park J, Kim K-T, Cho D-C, K Riew D, Kim D-H, Han I-B, Hyun S-J, Yoon D-H, Kim Y-B |
| Journal | Neurospine |
| Date Published | 2020 Nov 18 |
| ISSN | 2586-6583 |
| Abstract | Objective: 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. Methods: We developed two 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 t-EMG of each screw by intentionally penetrating the medial pedicle wall and contacting the exiting nerve root in a pig model. Results: 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 lead-nerve contact condition showed a significantly lower stimulation threshold as compared to the conventional screw. Conclusion: 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. |
| DOI | 10.14245/ns.2040424.212 |
| Alternate Journal | Neurospine |
| PubMed ID | 33211943 |