Botulinum Toxin Type A for the Treatment of Equinus Deformity in to Patients With Mucopolysaccharidosis Type II

Nava, Esmeralda; Weber, Peter; Gautschi, Matthias; Nuoffer, Jean-Marc; Grunt, Sebastian (2012). Botulinum Toxin Type A for the Treatment of Equinus Deformity in to Patients With Mucopolysaccharidosis Type II. Journal of child neurology, 27(12), pp. 1611-5. Hamilton, Ontario: Decker 10.1177/0883073812438100

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Mucopolysaccharidoses are lysosomal storage disorders that are caused by a deficiency in the enzymes that degrade glycosaminoglycans. The accumulation of glycosaminoglycans affects multiple systems, resulting in coarse facial features, short stature, organomegaly, and variable neurological changes from normal intelligence to severe mental retardation and spasticity. Effects on the musculoskeletal system include dysostosis multiplex, joint stiffness, and muscle shortening. This article reports 2 patients with mucopolysaccharidosis type II (Hunter syndrome) who showed progressive equinus deformity of the feet. Both patients were treated with intramuscular botulinum toxin type A injections in the gastrocnemius and the soleus muscles, followed by serial casting. In both patients, passive range of motion, muscle tone, and gait performance were significantly improved. Botulinum toxin type A injections followed by serial casting are a therapeutic option for contractures in patients with mucopolysaccharidosis. However, the long-term effects and the effect of application in other muscles remain unknown.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Department of Gynaecology, Paediatrics and Endocrinology (DFKE) > Clinic of Paediatric Medicine

UniBE Contributor:

Gautschi, Matthias, Nuoffer, Jean-Marc, Grunt, Sebastian








Anette van Dorland

Date Deposited:

04 Oct 2013 14:22

Last Modified:

05 Dec 2022 14:06

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PubMed ID:


Web of Science ID:


Additional Information:

Nava, Esmeralda;Weber, Peter;Gautschi, Matthias;Nuoffer, Jean-Marc;Grunt, Sebastian;J Child Neurol. 2012 Dec;27(12):1611-5. doi: 10.1177/0883073812438100. Epub 2012 Mar 20.

URI: (FactScience: 212926)

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