Architectural Changes of the Gastrocnemius Muscle after Botulinum Toxin Type A Injection in Children with Cerebral Palsy
Yonsei Medical Journal
; : 1406-1412, 2014.
Article
em En
| WPRIM
| ID: wpr-44322
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE: This study used ultrasonography (US) to investigate the architectural changes in gastrocnemius muscles (GCM) after botulinum toxin injection (BoNT-A) in children with cerebral palsy (CP). MATERIALS AND METHODS: Thirteen children with CP who received a BoNT-A injection into their GCM to treat equinus were recruited (9 males and 4 females). Architectural changes in both the medial and lateral heads of the GCM from a total of 20 legs were assessed using B-mode, real-time US. Muscle thickness (MT), fascicle length (FL), and fascicle angle (FA) were measured over the middle of the muscle belly in both a resting and neutral ankle position. Measures at 1 and 3 months after the injection were compared with baseline data taken before the injection. RESULTS: The mean age of the subjects was 5.8 (+/-1.6) years. Spasticity was significantly reduced when measured by both the modified Tardieu scale and the modified Ashworth scale at 1 and 3 months after injection (p<0.05). The MT and FA of both the medial and lateral heads of the GCM were significantly reduced for both neutral and resting ankle positions at 1 and 3 months after the injection. The FL of both the medial and lateral heads of the GCM were significantly increased in a resting position (p<0.05), but not in a neutral position. CONCLUSION: Our results demonstrated muscle architectural changes induced by BoNT-A injection. The functional significances of these changes were discussed.
Palavras-chave
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Toxinas Botulínicas
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Paralisia Cerebral
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Músculo Esquelético
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Inibidores da Liberação da Acetilcolina
Limite:
Child
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Child, preschool
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Female
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Humans
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Male
Idioma:
En
Revista:
Yonsei Medical Journal
Ano de publicação:
2014
Tipo de documento:
Article