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Functional Results After Carpal Tunnel Release in Mucopolysaccharidosis

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source: Orphanet journal of rare diseases

year: 2021

authors: Giostri GS,Souza CDA,Nagai AK,Santos MLSF,Sampaio JSP,de Masi Nassif FDJ


Mucopolysaccharidosis consists of a group of diseases caused by the deficiency of lysosomal enzymes, which may lead to the compression of the median nerve in the carpal tunnel due to the accumulation of glycosaminoglycan, resulting in the hand disability. The study purpose is to present functional results of carpal tunnel release in mucopolysaccharidosis patients. Patients were selected from an enzyme replacement group in the Department of Pediatric Neurology. The legal guardians of the patients were informed about the likely functional change of the hands induced by compression of the median nerve. Clinical evaluation was performed in those patients who received their legal guardians’ consent to participate and was included inspection, assessment of functional level, wrinkle test and the digital pinch function to manipulate small and large objects. Ultrasound and electromyography were performed to confirm the clinical median nerve compression. Bilateral extended opening technique was performed to access the carpal tunnel and analyze the anatomic findings of the median nerve and the flexed tendons of the fingers. After the surgical release of the carpal tunnel, the clinical evaluation was repeated. Subjective observations of the legal guardians were also considered.

organization: Serviço de Cirurgia da Mão do Hospital Pequeno Príncipe, Curitiba, PR, Brazil.

DOI: 10.1186/s13023-021-01982-3

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