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Ultrasonographic evaluation of changes in the muscle architecture of the gastrocnemius with botulinum toxin treatment for lower extremity spasticity in children with cerebral palsy
http://hdl.handle.net/10458/0002000460
http://hdl.handle.net/10458/0002000460e81da7e4-e2cb-453f-a90a-567e4dcd9476
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2024-01-26 | |||||
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| タイトル | Ultrasonographic evaluation of changes in the muscle architecture of the gastrocnemius with botulinum toxin treatment for lower extremity spasticity in children with cerebral palsy | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
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| 著者 |
川野, 彰裕
× 川野, 彰裕× Yanagizono, Taiichiro× Kadouchi, Ichiro× Umezaki, Tetsuya× 帖佐, 悦男 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Background Botulinum toxin A treatment involves injecting botulinum toxin A to relax muscle spasticity. Using ultrasonography, this study examined changes in the muscle architecture before and after treatment to evaluate the influence of botulinum toxin A injection on muscles. Methods The participants included 18 children (mean age, 6.2 years) with cerebral palsy who were treated with botulinum toxin A for lower extremity spasticity and 27 healthy children (mean age, 6.4 years) as a control group. In all cases, botulinum toxin A was injected into the gastrocnemius muscle. The muscle length, muscle width, and pennation angle (which indicates the degree of muscle fiber tone), were measured using B-mode ultrasonography before and 12 weeks after injection. Results The muscle length and muscle width were shorter in the cerebral palsy group than in the control group. The pennation angle in the cerebral palsy group significantly decreased after injection from 28.2 ± 3.6° to 25.8 ± 2.5° in the resting position of the ankle and from 18.6 ± 2.8° to 15.9 ± 1.7° in the maximum dorsiflexion position of the ankle. In the control group, the pennation angle was 25.9 ± 3.2° in the resting position of the ankle and 15.1 ± 2.5° in the maximum dorsiflexion position of the ankle. The rate of increase of fascicle length during passive movement from the resting position of the ankle to the maximum dorsiflexion position was 143.9% in the cerebral palsy group, which was significantly less than the value of 157.7% in the control group. After botulinum toxin A treatment, the rate of increase of fascicle length in the cerebral palsy group increased to 155.1%. Conclusions The decrease in the pennation angle after botulinum toxin A treatment is considered to be the result of a reduction of spasticity and subsequent structural changes in flaccid muscle fibers. |
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| 言語 | en | |||||
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| 内容記述タイプ | Other | |||||
| 内容記述 | Citation: Kawano A, Yanagizono T, Kadouchi I, Umezaki T, Chosa E. Ultrasonographic evaluation of changes in the muscle architecture of the gastrocnemius with botulinum toxin treatment for lower extremity spasticity in children with cerebral palsy. J Orthop Sci. 2018 Mar;23(2):389-393. doi: 10.1016/j.jos.2017.10.012. Epub 2017 Nov 14. PMID: 29146092. |
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| 言語 | en | |||||
| 書誌情報 |
en : Journal of Orthopaedic Science 巻 23, 号 2, p. 389-393, 発行日 2018-03 |
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| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| 言語 | en | |||||
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| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 09492658 | |||||
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| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1016/j.jos.2017.10.012 | |||||
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| 出版タイプ | NA | |||||
