Cargando…
Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison
BACKGROUND: Screw fixation is a common method used for the treatment of Mason type II radial head fractures. The purpose of our study was to evaluate the mechanical properties of three different screw orientations used for fixation of Mason type II radial head fractures. METHODS: We sawed 24 medium-...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5625609/ https://www.ncbi.nlm.nih.gov/pubmed/28969668 http://dx.doi.org/10.1186/s13018-017-0641-9 |
_version_ | 1783268413312860160 |
---|---|
author | Shi, Xuchao Pan, Tianlong Wu, Dengying Cai, Ningyu Chen, Rong Li, Bin Zhang, Rui Zhou, Chengwei Pan, Jun |
author_facet | Shi, Xuchao Pan, Tianlong Wu, Dengying Cai, Ningyu Chen, Rong Li, Bin Zhang, Rui Zhou, Chengwei Pan, Jun |
author_sort | Shi, Xuchao |
collection | PubMed |
description | BACKGROUND: Screw fixation is a common method used for the treatment of Mason type II radial head fractures. The purpose of our study was to evaluate the mechanical properties of three different screw orientations used for fixation of Mason type II radial head fractures. METHODS: We sawed 24 medium-frequency fourth-generation Synbone radial bones to simulate unstable radial head fractures, which we then fixed with three different screw orientations. Implants were tested under axial load by the tension-torsion composite test system. If the implant-radial constructs did not fail after the axial load test, an axial failure load was added to the remaining constructs. RESULTS: The stiffness of the divergent group was the highest of the three orientations, and this group had statistically significant difference from the other two groups (p < 0.05). However, there was no statistically significant difference between the convergence group and the parallel group (p > 0.05). When the displacement reached 2 mm, the load of the divergent screw was still larger than the other two groups (p < 0.05). CONCLUSIONS: The divergent screw orientation was the most stable and had the greatest control of Mason type II fractures of these three groups. Therefore, it can be better applied in clinical settings. |
format | Online Article Text |
id | pubmed-5625609 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-56256092017-10-12 Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison Shi, Xuchao Pan, Tianlong Wu, Dengying Cai, Ningyu Chen, Rong Li, Bin Zhang, Rui Zhou, Chengwei Pan, Jun J Orthop Surg Res Research Article BACKGROUND: Screw fixation is a common method used for the treatment of Mason type II radial head fractures. The purpose of our study was to evaluate the mechanical properties of three different screw orientations used for fixation of Mason type II radial head fractures. METHODS: We sawed 24 medium-frequency fourth-generation Synbone radial bones to simulate unstable radial head fractures, which we then fixed with three different screw orientations. Implants were tested under axial load by the tension-torsion composite test system. If the implant-radial constructs did not fail after the axial load test, an axial failure load was added to the remaining constructs. RESULTS: The stiffness of the divergent group was the highest of the three orientations, and this group had statistically significant difference from the other two groups (p < 0.05). However, there was no statistically significant difference between the convergence group and the parallel group (p > 0.05). When the displacement reached 2 mm, the load of the divergent screw was still larger than the other two groups (p < 0.05). CONCLUSIONS: The divergent screw orientation was the most stable and had the greatest control of Mason type II fractures of these three groups. Therefore, it can be better applied in clinical settings. BioMed Central 2017-10-02 /pmc/articles/PMC5625609/ /pubmed/28969668 http://dx.doi.org/10.1186/s13018-017-0641-9 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. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Shi, Xuchao Pan, Tianlong Wu, Dengying Cai, Ningyu Chen, Rong Li, Bin Zhang, Rui Zhou, Chengwei Pan, Jun Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison |
title | Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison |
title_full | Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison |
title_fullStr | Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison |
title_full_unstemmed | Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison |
title_short | Effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison |
title_sort | effect of different orientations of screw fixation for radial head fractures: a biomechanical comparison |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5625609/ https://www.ncbi.nlm.nih.gov/pubmed/28969668 http://dx.doi.org/10.1186/s13018-017-0641-9 |
work_keys_str_mv | AT shixuchao effectofdifferentorientationsofscrewfixationforradialheadfracturesabiomechanicalcomparison AT pantianlong effectofdifferentorientationsofscrewfixationforradialheadfracturesabiomechanicalcomparison AT wudengying effectofdifferentorientationsofscrewfixationforradialheadfracturesabiomechanicalcomparison AT cainingyu effectofdifferentorientationsofscrewfixationforradialheadfracturesabiomechanicalcomparison AT chenrong effectofdifferentorientationsofscrewfixationforradialheadfracturesabiomechanicalcomparison AT libin effectofdifferentorientationsofscrewfixationforradialheadfracturesabiomechanicalcomparison AT zhangrui effectofdifferentorientationsofscrewfixationforradialheadfracturesabiomechanicalcomparison AT zhouchengwei effectofdifferentorientationsofscrewfixationforradialheadfracturesabiomechanicalcomparison AT panjun effectofdifferentorientationsofscrewfixationforradialheadfracturesabiomechanicalcomparison |