A New Coupling Method for Accurate Measurement of Pedicle Screw Electrical Properties for Surgical Procedures
The objective of this study is to present a new coupling method in order to measure the electrical properties of titanium alloy pedicle screws used in spinal surgery and to compare it with other common methods of measurement. An experimental setup was devised to test the electrical resistance of two...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/21/9861 |
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| author | Pedro Fonseca Márcio Fagundes Goethel Ricardo Sebastião Manoela Vieira Sousa João Paulo Vilas-Boas Miguel Velhote Correia Manuel Gutierres |
| author_facet | Pedro Fonseca Márcio Fagundes Goethel Ricardo Sebastião Manoela Vieira Sousa João Paulo Vilas-Boas Miguel Velhote Correia Manuel Gutierres |
| author_sort | Pedro Fonseca |
| collection | DOAJ |
| description | The objective of this study is to present a new coupling method in order to measure the electrical properties of titanium alloy pedicle screws used in spinal surgery and to compare it with other common methods of measurement. An experimental setup was devised to test the electrical resistance of two specimens of pedicle screws using four methods for coupling the sensing leads, including the use of multimeter probes, alligator clips, wrapped wires and encapsulation with thermo-retractable sleeves. The electrical resistance of the pedicle screw under testing was measured at a current of 10 mA for each coupling method, and the results compared. Our findings show that although widely used in electrical analysis, the alligator clips do not perform as well as the other methods, such as simple wrapping of wires around the screw or the direct application of multimeter probes. The use of thermo-retractable sleeves provides the lowest resistance and inter-quartile range and is closer to the tabled values for the screw’s titanium alloy. Additionally, only this method allows the measurement of identical resistivity values between different screw models manufactured with the same titanium alloy. We then concluded that the use of wrapped wires encapsulated with thermo-retractable sleeves allow more accurate measurements of the pedicle screw’s electrical properties. |
| first_indexed | 2024-03-10T06:07:53Z |
| format | Article |
| id | doaj.art-9236fc502980405597e60b92cd5f6691 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T06:07:53Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-9236fc502980405597e60b92cd5f66912023-11-22T20:24:13ZengMDPI AGApplied Sciences2076-34172021-10-011121986110.3390/app11219861A New Coupling Method for Accurate Measurement of Pedicle Screw Electrical Properties for Surgical ProceduresPedro Fonseca0Márcio Fagundes Goethel1Ricardo Sebastião2Manoela Vieira Sousa3João Paulo Vilas-Boas4Miguel Velhote Correia5Manuel Gutierres6Porto Biomechanics Laboratory, University of Porto (LABIOMEP-UP), 4200-450 Porto, PortugalPorto Biomechanics Laboratory, University of Porto (LABIOMEP-UP), 4200-450 Porto, PortugalPorto Biomechanics Laboratory, University of Porto (LABIOMEP-UP), 4200-450 Porto, PortugalPorto Biomechanics Laboratory, University of Porto (LABIOMEP-UP), 4200-450 Porto, PortugalPorto Biomechanics Laboratory, University of Porto (LABIOMEP-UP), 4200-450 Porto, PortugalPorto Biomechanics Laboratory, University of Porto (LABIOMEP-UP), 4200-450 Porto, PortugalPorto Biomechanics Laboratory, University of Porto (LABIOMEP-UP), 4200-450 Porto, PortugalThe objective of this study is to present a new coupling method in order to measure the electrical properties of titanium alloy pedicle screws used in spinal surgery and to compare it with other common methods of measurement. An experimental setup was devised to test the electrical resistance of two specimens of pedicle screws using four methods for coupling the sensing leads, including the use of multimeter probes, alligator clips, wrapped wires and encapsulation with thermo-retractable sleeves. The electrical resistance of the pedicle screw under testing was measured at a current of 10 mA for each coupling method, and the results compared. Our findings show that although widely used in electrical analysis, the alligator clips do not perform as well as the other methods, such as simple wrapping of wires around the screw or the direct application of multimeter probes. The use of thermo-retractable sleeves provides the lowest resistance and inter-quartile range and is closer to the tabled values for the screw’s titanium alloy. Additionally, only this method allows the measurement of identical resistivity values between different screw models manufactured with the same titanium alloy. We then concluded that the use of wrapped wires encapsulated with thermo-retractable sleeves allow more accurate measurements of the pedicle screw’s electrical properties.https://www.mdpi.com/2076-3417/11/21/9861electrical resistancepedicle screwelectrical stimulationintraoperative monitoringspine surgerypedicle instrumentation |
| spellingShingle | Pedro Fonseca Márcio Fagundes Goethel Ricardo Sebastião Manoela Vieira Sousa João Paulo Vilas-Boas Miguel Velhote Correia Manuel Gutierres A New Coupling Method for Accurate Measurement of Pedicle Screw Electrical Properties for Surgical Procedures Applied Sciences electrical resistance pedicle screw electrical stimulation intraoperative monitoring spine surgery pedicle instrumentation |
| title | A New Coupling Method for Accurate Measurement of Pedicle Screw Electrical Properties for Surgical Procedures |
| title_full | A New Coupling Method for Accurate Measurement of Pedicle Screw Electrical Properties for Surgical Procedures |
| title_fullStr | A New Coupling Method for Accurate Measurement of Pedicle Screw Electrical Properties for Surgical Procedures |
| title_full_unstemmed | A New Coupling Method for Accurate Measurement of Pedicle Screw Electrical Properties for Surgical Procedures |
| title_short | A New Coupling Method for Accurate Measurement of Pedicle Screw Electrical Properties for Surgical Procedures |
| title_sort | new coupling method for accurate measurement of pedicle screw electrical properties for surgical procedures |
| topic | electrical resistance pedicle screw electrical stimulation intraoperative monitoring spine surgery pedicle instrumentation |
| url | https://www.mdpi.com/2076-3417/11/21/9861 |
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