Wirst musculature anatomic variation associated with Guyon’s canal syndrome: a case report

Authors

  • Arnaldo Gonçalves de Jesus Filho Serviço de Ortopedia e Traumatologia do HU- UFJF, equipe de Cirurgia da Mão
  • Gabriel Meireles Azevedo Pereira Serviço de Ortopedia e Traumatologia do HU -UFJF https://orcid.org/0000-0001-9153-3459
  • Marcos Vitor Pires Duque Serviço de Ortopedia e Traumatologia do HU -UFJF
  • Arthur Chaves de Almeida Faculdade de Medicina da Universidade Federal de Juiz de Fora https://orcid.org/0000-0002-6013-7231
  • Ana Júlia Machado Talma Faculdade de Medicina da Universidade Federal de Juiz de Fora https://orcid.org/0000-0002-8793-066X

DOI:

https://doi.org/10.34019/1982-8047.2021.v47.35457

Keywords:

Guyon Syndrome, Ulnar Nerve Compression, Anatomic Variation

Abstract

Introduction: Guyon's canal syndrome is the ulnar nerve compressive neuropathy at the level of the wrist, and one of its rarer etiologies is the presence of anomalous muscles crossing Guyon's canal. Objective: To report a case of a patient with Guyon's syndrome caused by the presence of accessory little finger abductor muscle. Case Report: The patient presented with a clinical presentation of paresthesia and pain in the 4th and 5th fingers of the right upper limb and positive Wartenberg and Egawa tests. After ultrassonography and eletroneuromyography, the presence of ulnar nerve compression at the wrist level (Guyon's syndrome) and also at the elbow level were demonstrated. During surgical treatment, anatomical variation of the acessory abductor little finger muscle was observed, which was anomalously crossing Guyon's canal, causing the compression of the ulnar nerve. After the procedure, the patient showed improvement in symptoms and progressed well with physical therapy. Conclusion: The presence of abnormal muscles can be the cause of compressive neuropathies. Through the case reported, it contributes to the dissemination of this knowledge about these anatomical variations, contributing to better management and treatment of the patients.

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Published

2021-12-09

How to Cite

1.
Gonçalves de Jesus Filho A, Meireles Azevedo Pereira G, Vitor Pires Duque M, Chaves de Almeida A, Machado Talma AJ. Wirst musculature anatomic variation associated with Guyon’s canal syndrome: a case report. HU Rev [Internet]. 2021Dec.9 [cited 2024Nov.22];47:1-4. Available from: https://periodicos.ufjf.br/index.php/hurevista/article/view/35457

Issue

Vol. 47 (2021)

Section

Relato de Caso

License

Copyright (c) 2021 Arnaldo Gonçalves de Jesus Filho, Gabriel Meireles Azevedo Pereira, Marcos Vitor Pires Duque, Arthur Chaves de Almeida, Ana Júlia Machado Talma

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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