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Unicortical self-drilling external fixator pins reduce thermal effects during pin insertion
INTRODUCTION: External fixation is associated with the risk of pin loosening and pin infection potentially associated to thermal bone necrosis during pin insertion. OBJECTIVE: This study aims to investigate if the use of external fixator systems with unicortical pins reduces the heat production duri...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6267143/ https://www.ncbi.nlm.nih.gov/pubmed/29242952 http://dx.doi.org/10.1007/s00068-017-0887-2 |
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author | Greinwald, Markus Varady, Patrick A. Augat, Peter |
author_facet | Greinwald, Markus Varady, Patrick A. Augat, Peter |
author_sort | Greinwald, Markus |
collection | PubMed |
description | INTRODUCTION: External fixation is associated with the risk of pin loosening and pin infection potentially associated to thermal bone necrosis during pin insertion. OBJECTIVE: This study aims to investigate if the use of external fixator systems with unicortical pins reduces the heat production during pin insertion compared to fixators with bicortical pins. METHODS: Porcine bone specimens were employed to determine bone temperatures during insertion of fixator pins. Two thermographic cameras were used for a simultaneous temperature measurement on the bone surface (top view) and a bone cross-section (front view). Self-drilling unicortical and bicortical pins were inserted at different rotational speeds: (30–600) rpm. Maximum and mean temperatures of the emerging bone debris, bone surface and bone cross-section were analyzed. RESULTS: Maximum temperatures of up to 77 ± 26 °C were measured during pin insertion in the emerging debris and up to 42 ± 2 °C on the bone surface. Temperatures of the emerging debris increased with increasing rotational speeds. Bicortical pin insertion generated significantly higher temperatures at low insertion speed (30 rpm) CONCLUSION: The insertion of external fixator pins can generate a considerable amount of heat around the pins, primarily emerging from bone debris and at higher insertion speeds. Our findings suggest that unicortical, self-drilling fixator pins have a decreased risk for thermal damage, both to the surrounding tissue and to the bone itself. |
format | Online Article Text |
id | pubmed-6267143 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-62671432018-12-11 Unicortical self-drilling external fixator pins reduce thermal effects during pin insertion Greinwald, Markus Varady, Patrick A. Augat, Peter Eur J Trauma Emerg Surg Original Article INTRODUCTION: External fixation is associated with the risk of pin loosening and pin infection potentially associated to thermal bone necrosis during pin insertion. OBJECTIVE: This study aims to investigate if the use of external fixator systems with unicortical pins reduces the heat production during pin insertion compared to fixators with bicortical pins. METHODS: Porcine bone specimens were employed to determine bone temperatures during insertion of fixator pins. Two thermographic cameras were used for a simultaneous temperature measurement on the bone surface (top view) and a bone cross-section (front view). Self-drilling unicortical and bicortical pins were inserted at different rotational speeds: (30–600) rpm. Maximum and mean temperatures of the emerging bone debris, bone surface and bone cross-section were analyzed. RESULTS: Maximum temperatures of up to 77 ± 26 °C were measured during pin insertion in the emerging debris and up to 42 ± 2 °C on the bone surface. Temperatures of the emerging debris increased with increasing rotational speeds. Bicortical pin insertion generated significantly higher temperatures at low insertion speed (30 rpm) CONCLUSION: The insertion of external fixator pins can generate a considerable amount of heat around the pins, primarily emerging from bone debris and at higher insertion speeds. Our findings suggest that unicortical, self-drilling fixator pins have a decreased risk for thermal damage, both to the surrounding tissue and to the bone itself. Springer Berlin Heidelberg 2017-12-14 2018 /pmc/articles/PMC6267143/ /pubmed/29242952 http://dx.doi.org/10.1007/s00068-017-0887-2 Text en © The Author(s) 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Original Article Greinwald, Markus Varady, Patrick A. Augat, Peter Unicortical self-drilling external fixator pins reduce thermal effects during pin insertion |
title | Unicortical self-drilling external fixator pins reduce thermal effects during pin insertion |
title_full | Unicortical self-drilling external fixator pins reduce thermal effects during pin insertion |
title_fullStr | Unicortical self-drilling external fixator pins reduce thermal effects during pin insertion |
title_full_unstemmed | Unicortical self-drilling external fixator pins reduce thermal effects during pin insertion |
title_short | Unicortical self-drilling external fixator pins reduce thermal effects during pin insertion |
title_sort | unicortical self-drilling external fixator pins reduce thermal effects during pin insertion |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6267143/ https://www.ncbi.nlm.nih.gov/pubmed/29242952 http://dx.doi.org/10.1007/s00068-017-0887-2 |
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