Musician’s dystonia in a percussionist – clinical video analysis and botulinum toxin intervention: a case report

Objective: Musician’s focal hand dystonia is a painless task-specific focal dystonia, which presents with involuntary movements, abnormal postures, and loss of fine motor dexterity. We report here the case of a 63-year-old male, percussionist, with african ethnicity, with musician’s focal hand dysto...

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Main Authors: Manuel Tomás Farinha Caroço, Ana Zão, Júlia Ribeiro, Ana Fialho, Victor Milet, Bruna Meira
Format: Article
Language:English
Published: Medical Journals Sweden 2024-03-01
Series:Journal of Rehabilitation Medicine
Subjects:
Online Access:https://medicaljournalssweden.se/jrm/article/view/34877
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author Manuel Tomás Farinha Caroço
Ana Zão
Júlia Ribeiro
Ana Fialho
Victor Milet
Bruna Meira
author_facet Manuel Tomás Farinha Caroço
Ana Zão
Júlia Ribeiro
Ana Fialho
Victor Milet
Bruna Meira
author_sort Manuel Tomás Farinha Caroço
collection DOAJ
description Objective: Musician’s focal hand dystonia is a painless task-specific focal dystonia, which presents with involuntary movements, abnormal postures, and loss of fine motor dexterity. We report here the case of a 63-year-old male, percussionist, with african ethnicity, with musician’s focal hand dystonia who was treated with botulinum toxin, and describe the results at 4-weeks follow up. Methods: Clinical examination and video analysis revealed abnormal flexion of the 3rd finger, followed by flexion of the 4th and 5th fingers while playing the congas. Based on these findings, a diagnosis of musician's focal hand dystonia was established. Ten units of botulinum toxin were injected into the muscle fibres of the flexor digitorum superficialis corresponding to the 4th finger using electromyography and ultrasound guidance. Four weeks later, the patient reported a subjective 60% improvement in his performance. He emphasized the effect of botulinum toxin on performance speed and tension over the forearm and hand. Conclusion: Botulinum toxin is not a definitive treatment for musician’s focal hand dystonia, but it may potentiate other definitive rehabilitation techniques. More research is needed to determine the long-term effects of botulinum toxin on function enhancement in musician’s focal hand dystonia.
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spelling doaj.art-e9c60676bf9047f3a288529c4c4eb4fa2024-03-14T09:55:54ZengMedical Journals SwedenJournal of Rehabilitation Medicine1651-20812024-03-015610.2340/jrm.v56.34877Musician’s dystonia in a percussionist – clinical video analysis and botulinum toxin intervention: a case reportManuel Tomás Farinha Caroço0Ana Zão1Júlia Ribeiro2Ana Fialho3Victor Milet4Bruna Meira5Physical and Rehabilitation Medicine Department, Hospital de Faro, Unidade Local de Saúde do Algarve, Faro, Portugal; Algarve Biomedical Center Research Institute (ABC-RI), Faro, PortugalChronic Pain Unit and Physical and Rehabilitation Medicine Department, Hospital de Santo António, Unidade Local de Saúde de Santo António, Oporto, Portugal; Faculty of Medicine, University of Porto (FMUP), Oporto, Portugal; Center for Health Technology and Services Research and Health Research Network (CINTESIS@RISE), Oporto, Portugal; International Center of Arts Medicine, CUF Porto Institute, Oporto, PortugalPhysical and Rehabilitation Medicine Department, Hospital de Faro, Unidade Local de Saúde do Algarve, Faro, Portugal; Algarve Biomedical Center Research Institute (ABC-RI), Faro, PortugalPhysical and Rehabilitation Department, Hospital de Portimão, Unidade Local de Saúde do Algarve, Portimão, PortugalPhysical and Rehabilitation Medicine Department, Hospital de Faro, Unidade Local de Saúde do Algarve, Faro, Portugal; Algarve Biomedical Center Research Institute (ABC-RI), Faro, PortugalNeurology Department, Hospital de Egas Moniz, Unidade Local de Saúde Lisboa Ocidental, Lisboa, PortugalObjective: Musician’s focal hand dystonia is a painless task-specific focal dystonia, which presents with involuntary movements, abnormal postures, and loss of fine motor dexterity. We report here the case of a 63-year-old male, percussionist, with african ethnicity, with musician’s focal hand dystonia who was treated with botulinum toxin, and describe the results at 4-weeks follow up. Methods: Clinical examination and video analysis revealed abnormal flexion of the 3rd finger, followed by flexion of the 4th and 5th fingers while playing the congas. Based on these findings, a diagnosis of musician's focal hand dystonia was established. Ten units of botulinum toxin were injected into the muscle fibres of the flexor digitorum superficialis corresponding to the 4th finger using electromyography and ultrasound guidance. Four weeks later, the patient reported a subjective 60% improvement in his performance. He emphasized the effect of botulinum toxin on performance speed and tension over the forearm and hand. Conclusion: Botulinum toxin is not a definitive treatment for musician’s focal hand dystonia, but it may potentiate other definitive rehabilitation techniques. More research is needed to determine the long-term effects of botulinum toxin on function enhancement in musician’s focal hand dystonia. https://medicaljournalssweden.se/jrm/article/view/34877botulinum toxinscase reportdystoniafocaltask-specificelectromyography
spellingShingle Manuel Tomás Farinha Caroço
Ana Zão
Júlia Ribeiro
Ana Fialho
Victor Milet
Bruna Meira
Musician’s dystonia in a percussionist – clinical video analysis and botulinum toxin intervention: a case report
Journal of Rehabilitation Medicine
botulinum toxins
case report
dystonia
focal
task-specific
electromyography
title Musician’s dystonia in a percussionist – clinical video analysis and botulinum toxin intervention: a case report
title_full Musician’s dystonia in a percussionist – clinical video analysis and botulinum toxin intervention: a case report
title_fullStr Musician’s dystonia in a percussionist – clinical video analysis and botulinum toxin intervention: a case report
title_full_unstemmed Musician’s dystonia in a percussionist – clinical video analysis and botulinum toxin intervention: a case report
title_short Musician’s dystonia in a percussionist – clinical video analysis and botulinum toxin intervention: a case report
title_sort musician s dystonia in a percussionist clinical video analysis and botulinum toxin intervention a case report
topic botulinum toxins
case report
dystonia
focal
task-specific
electromyography
url https://medicaljournalssweden.se/jrm/article/view/34877
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