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Analysis of the Optimum Tapering Angle in Microanastomosis Using Computational Fluid Dynamics
https://repository.lib.tottori-u.ac.jp/records/4661
https://repository.lib.tottori-u.ac.jp/records/466123a7fb5d-0be8-4898-8105-b5a06aa61c86
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
yam65(4)_296.pdf (3.1 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2023-01-18 | |||||
| タイトル | ||||||
| タイトル | Analysis of the Optimum Tapering Angle in Microanastomosis Using Computational Fluid Dynamics | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | microsurgery | |||||
| キーワード | ||||||
| 主題 | tapering | |||||
| キーワード | ||||||
| 主題 | computational fluid dynamics | |||||
| キーワード | ||||||
| 主題 | size discrepancy | |||||
| キーワード | ||||||
| 主題 | simulation | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | microsurgery | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | tapering | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | computational fluid dynamics | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | size discrepancy | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | simulation | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
| 著者 |
八木, 俊路朗
× 八木, 俊路朗× 陶山, 淑子× Fukuoka, Kohei× Ikuta, Kento× Miyazaki, Shohei× Umeda, Ryunosuke× Kanayama, Haruka× A., Hifny Mahmoud× Morita, Maki× Nakagaki, Makoto× Tanabe, Makoto× Fukuoka, Kohei |
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| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Plastic and Reconstructive Surgery, Tottori University Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Plastic and Reconstructive Surgery, Tottori University Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Cardio Flow Design, Inc. | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Plastic and Reconstructive Surgery, Tottori University Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Plastic and Reconstructive Surgery, Tottori University Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Plastic Surgery, Qena University Hospital, South Valley University | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Plastic and Reconstructive Surgery, Tottori University Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Plastic and Reconstructive Surgery, Tottori University Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Plastic and Reconstructive Surgery, Tottori University Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Plastic and Reconstructive Surgery, Tottori University Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Plastic and Reconstructive Surgery, Tottori University Hospital | |||||
| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Background: In free flap transfer, size discrepancy between the vascular pedicle and recipient vessel can create a problem for microsurgeons and sometimes induces postoperative thrombus formation. When there is a major difference between the diameters of the vascular pedicle and the recipient vessel, the larger vessel is often tapered to perform the anastomosis properly. However, the decision on the tapering angle used depends mostly on the operator’s experience. In this study, computational fluid dynamics (CFD) was used to investigate the optimum tapering angle. Methods: Using ANSYS ICEM 16.0 (ANSYS Japan, Tokyo, Japan), simulated vessels of diameters 1.5 mm and 3.0 mm were designed and then used to produce four anastomosis models with the 3.0-mm vessel tapered at angles of 15º, 30º, 60º, and 90º (no tapering). Venous perfusion with a mean value of 13.0 mL/min was simulated, and this was passed through the four anastomosis models in both the forward direction (F), from the smaller to the larger vessel, and the retrograde direction (R), from the larger to the smaller vessel. The velocity, wall shear stress (WSS), and oscillatory shear index (OSI) were measured in these eight patterns and then analyzed using OpenFOAM version 5. Results: The decrease in velocity was limiting. The WSS was greater in the R direction than the F direction at every tapering angle. The OSI also tended to be almost the same in the F direction, and lower at smaller tapering angles in the R direction. And, it was greater in the F direction than in the R direction at every tapering angle. The OSI values for 15º and 30º were almost identical in the R direction. Conclusion: The risk of thrombus formation is thought to be lower when tapering is used for anastomosis if the direction of flow is from the larger to the smaller vessel, rather than vice versa. These results also suggest that the optimum tapering angle is approximately 30º in both directions. | |||||
| 書誌情報 |
Yonago Acta Medica en : Yonago Acta Medica 巻 65, 号 4, p. 296-302, 発行日 2022-11-28 |
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| 出版者 | ||||||
| 出版者 | Tottori University Medical Press | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 05135710 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA00892882 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.33160/yam.2022.11.005 | |||||
| 権利 | ||||||
| 権利情報 | (C) 2022 Tottori University Medical Press. | |||||
| 情報源 | ||||||
| 関連名称 | Yonago Acta Medica. 2022, 65(4), 296-302. doi:10.33160/yam.2022.11.005 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.lib.tottori-u.ac.jp/yam/yam/yam65-4/65-4contents.html | |||||
| 関連名称 | https://www.lib.tottori-u.ac.jp/yam/yam/yam65-4/65-4contents.html | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.33160/yam.2022.11.005 | |||||
| 関連名称 | https://doi.org/10.33160/yam.2022.11.005 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| EISSN | ||||||
| 値 | 13468049 | |||||
