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Novel Passive Two-Stage Magnetic Targeting Devices for Distal Locking of Interlocking Nails

Interlocking nailing is a common surgical operation to stabilize fractures in long bones. One of the difficult parts of the surgery is how to locate the position and direction of a screw hole on the interlocking nail, which is invisible to the naked eye after insertion of the nail into the medullary...

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Autores principales: Wong, Tze-Hong, Lee, Meng-Shiue, Wu, Sung-Yueh, Hsu, Wensyang, Chung, Tien-Kan, Wu, Chia-Pei, Hsu, Pei-Jung, Yang, Yuh-Shyong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5572612/
https://www.ncbi.nlm.nih.gov/pubmed/29065588
http://dx.doi.org/10.1155/2017/3619403
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author Wong, Tze-Hong
Lee, Meng-Shiue
Wu, Sung-Yueh
Hsu, Wensyang
Chung, Tien-Kan
Wu, Chia-Pei
Hsu, Pei-Jung
Yang, Yuh-Shyong
author_facet Wong, Tze-Hong
Lee, Meng-Shiue
Wu, Sung-Yueh
Hsu, Wensyang
Chung, Tien-Kan
Wu, Chia-Pei
Hsu, Pei-Jung
Yang, Yuh-Shyong
author_sort Wong, Tze-Hong
collection PubMed
description Interlocking nailing is a common surgical operation to stabilize fractures in long bones. One of the difficult parts of the surgery is how to locate the position and direction of a screw hole on the interlocking nail, which is invisible to the naked eye after insertion of the nail into the medullary canal. Here, we propose a novel two-stage targeting process using two passive magnetic devices to locate the position and direction of the screw hole without radiation for the locking screw procedure. This involves a ring-shape positioning magnet inside the nail to generate a magnetic field for targeting. From the accuracy test results of these two-stage targeting devices, the search region can be identified in less than 20 seconds by the 1st-stage targeting device, while the total targeting time to locate the drilling position and direction takes less than 4 minutes, with 100% successful rate in 50 attempts. The drilling test further combines the two-stage targeting process and drilling process on the swine tibia, and it is shown that a 100% successful rate is achieved in all 10 attempts, where the total time needed is less than 5 minutes.
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spelling pubmed-55726122017-09-07 Novel Passive Two-Stage Magnetic Targeting Devices for Distal Locking of Interlocking Nails Wong, Tze-Hong Lee, Meng-Shiue Wu, Sung-Yueh Hsu, Wensyang Chung, Tien-Kan Wu, Chia-Pei Hsu, Pei-Jung Yang, Yuh-Shyong J Healthc Eng Research Article Interlocking nailing is a common surgical operation to stabilize fractures in long bones. One of the difficult parts of the surgery is how to locate the position and direction of a screw hole on the interlocking nail, which is invisible to the naked eye after insertion of the nail into the medullary canal. Here, we propose a novel two-stage targeting process using two passive magnetic devices to locate the position and direction of the screw hole without radiation for the locking screw procedure. This involves a ring-shape positioning magnet inside the nail to generate a magnetic field for targeting. From the accuracy test results of these two-stage targeting devices, the search region can be identified in less than 20 seconds by the 1st-stage targeting device, while the total targeting time to locate the drilling position and direction takes less than 4 minutes, with 100% successful rate in 50 attempts. The drilling test further combines the two-stage targeting process and drilling process on the swine tibia, and it is shown that a 100% successful rate is achieved in all 10 attempts, where the total time needed is less than 5 minutes. Hindawi 2017 2017-08-13 /pmc/articles/PMC5572612/ /pubmed/29065588 http://dx.doi.org/10.1155/2017/3619403 Text en Copyright © 2017 Tze-Hong Wong et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Wong, Tze-Hong
Lee, Meng-Shiue
Wu, Sung-Yueh
Hsu, Wensyang
Chung, Tien-Kan
Wu, Chia-Pei
Hsu, Pei-Jung
Yang, Yuh-Shyong
Novel Passive Two-Stage Magnetic Targeting Devices for Distal Locking of Interlocking Nails
title Novel Passive Two-Stage Magnetic Targeting Devices for Distal Locking of Interlocking Nails
title_full Novel Passive Two-Stage Magnetic Targeting Devices for Distal Locking of Interlocking Nails
title_fullStr Novel Passive Two-Stage Magnetic Targeting Devices for Distal Locking of Interlocking Nails
title_full_unstemmed Novel Passive Two-Stage Magnetic Targeting Devices for Distal Locking of Interlocking Nails
title_short Novel Passive Two-Stage Magnetic Targeting Devices for Distal Locking of Interlocking Nails
title_sort novel passive two-stage magnetic targeting devices for distal locking of interlocking nails
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5572612/
https://www.ncbi.nlm.nih.gov/pubmed/29065588
http://dx.doi.org/10.1155/2017/3619403
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