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A comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing
PURPOSE: Antibacterial iodine-supported titanium has an anodized oxide layer; thus, it can be expected to have a higher osteoconductivity than untreated titanium. This study aimed to compare the osteoconductivity between untreated titanium (Ti), anodically oxidized titanium (AO-Ti), and iodine-suppo...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221053/ https://www.ncbi.nlm.nih.gov/pubmed/32405666 http://dx.doi.org/10.1186/s40634-020-00250-w |
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author | Ota, Takashi Demura, Satoru Kato, Satoshi Yoshioka, Katsuhito Hayashi, Hiroyuki Inoue, Kei Shinmura, Kazuya Yokogawa, Noriaki Shirai, Toshiharu Murakami, Hideki Tsuchiya, Hiroyuki |
author_facet | Ota, Takashi Demura, Satoru Kato, Satoshi Yoshioka, Katsuhito Hayashi, Hiroyuki Inoue, Kei Shinmura, Kazuya Yokogawa, Noriaki Shirai, Toshiharu Murakami, Hideki Tsuchiya, Hiroyuki |
author_sort | Ota, Takashi |
collection | PubMed |
description | PURPOSE: Antibacterial iodine-supported titanium has an anodized oxide layer; thus, it can be expected to have a higher osteoconductivity than untreated titanium. This study aimed to compare the osteoconductivity between untreated titanium (Ti), anodically oxidized titanium (AO-Ti), and iodine-supported titanium (I-Ti) screws. METHODS: The screws were inserted into the vertebral bodies of 30 dogs (12 for the biomechanical, and 18 for the histological examination). The vertebral bodies were analyzed at 4 or 8 weeks after screw insertion. Biomechanically, rotational torque of the screw was measured. Histologically, bone formation index (ratio of the length of the part where the bone directly contacts with the length of the screw) and bone volume density (ratio of the area of the bone tissue to the area between the threads of the screw) were measured. RESULT: At 4 weeks, the torque value was significantly higher in the AO-Ti (0.59 ± 0.16 Nm) and I-Ti (0.72 ± 0.14 Nm) groups than in the Ti group (0.39 ± 0.12 Nm), with the AO-Ti and I-Ti groups showing no significant difference. Bone formation index was significantly higher in the AO-Ti (72.5% ± 0.8%) and I-Ti (73.4% ± 1.5%) groups than in the Ti group (64.6% ±1.7%), with the AO-Ti and I-Ti groups showing no significant difference. Bone volume density did not show a significant difference. At 8 weeks, the results were similar to those at 4 weeks. CONCLUSIONS: I-Ti had a higher osteoconductivity than Ti, indicating that iodine coating did not adversely affect osteoconductivity. |
format | Online Article Text |
id | pubmed-7221053 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-72210532020-05-15 A comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing Ota, Takashi Demura, Satoru Kato, Satoshi Yoshioka, Katsuhito Hayashi, Hiroyuki Inoue, Kei Shinmura, Kazuya Yokogawa, Noriaki Shirai, Toshiharu Murakami, Hideki Tsuchiya, Hiroyuki J Exp Orthop Research PURPOSE: Antibacterial iodine-supported titanium has an anodized oxide layer; thus, it can be expected to have a higher osteoconductivity than untreated titanium. This study aimed to compare the osteoconductivity between untreated titanium (Ti), anodically oxidized titanium (AO-Ti), and iodine-supported titanium (I-Ti) screws. METHODS: The screws were inserted into the vertebral bodies of 30 dogs (12 for the biomechanical, and 18 for the histological examination). The vertebral bodies were analyzed at 4 or 8 weeks after screw insertion. Biomechanically, rotational torque of the screw was measured. Histologically, bone formation index (ratio of the length of the part where the bone directly contacts with the length of the screw) and bone volume density (ratio of the area of the bone tissue to the area between the threads of the screw) were measured. RESULT: At 4 weeks, the torque value was significantly higher in the AO-Ti (0.59 ± 0.16 Nm) and I-Ti (0.72 ± 0.14 Nm) groups than in the Ti group (0.39 ± 0.12 Nm), with the AO-Ti and I-Ti groups showing no significant difference. Bone formation index was significantly higher in the AO-Ti (72.5% ± 0.8%) and I-Ti (73.4% ± 1.5%) groups than in the Ti group (64.6% ±1.7%), with the AO-Ti and I-Ti groups showing no significant difference. Bone volume density did not show a significant difference. At 8 weeks, the results were similar to those at 4 weeks. CONCLUSIONS: I-Ti had a higher osteoconductivity than Ti, indicating that iodine coating did not adversely affect osteoconductivity. Springer Berlin Heidelberg 2020-05-13 /pmc/articles/PMC7221053/ /pubmed/32405666 http://dx.doi.org/10.1186/s40634-020-00250-w Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Research Ota, Takashi Demura, Satoru Kato, Satoshi Yoshioka, Katsuhito Hayashi, Hiroyuki Inoue, Kei Shinmura, Kazuya Yokogawa, Noriaki Shirai, Toshiharu Murakami, Hideki Tsuchiya, Hiroyuki A comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing |
title | A comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing |
title_full | A comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing |
title_fullStr | A comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing |
title_full_unstemmed | A comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing |
title_short | A comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing |
title_sort | comparison of bone conductivity on titanium screws inserted into the vertebra using different surface processing |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221053/ https://www.ncbi.nlm.nih.gov/pubmed/32405666 http://dx.doi.org/10.1186/s40634-020-00250-w |
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