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Compressive neuropathy of the first branch of the lateral plantar nerve: a study by magnetic resonance imaging / Neuropatia compressiva do primeiro ramo do nervo plantar lateral: estudo por ressonância magnética
Rodrigues, Rogéria Nobre; Lopes, Alexia Abuhid; Torres, Jardélio Mendes; Mundim, Marina Franco; Silva, Lênio Lúcio Gavio; Silva, Breno Rabelo de Carvalho e.
  • Rodrigues, Rogéria Nobre; Axial Medicina Diagnóstica. Belo Horizonte. BR
  • Lopes, Alexia Abuhid; Axial Medicina Diagnóstica. Belo Horizonte. BR
  • Torres, Jardélio Mendes; Axial Medicina Diagnóstica. Belo Horizonte. BR
  • Mundim, Marina Franco; Axial Medicina Diagnóstica. Belo Horizonte. BR
  • Silva, Lênio Lúcio Gavio; Axial Medicina Diagnóstica. Belo Horizonte. BR
  • Silva, Breno Rabelo de Carvalho e; Axial Medicina Diagnóstica. Belo Horizonte. BR
Radiol. bras ; 48(6): 368-372, Nov.-Dec. 2015. tab, graf
Article in Portuguese | LILACS | ID: lil-771085
ABSTRACT
Abstract Objective: To assess the prevalence of isolated findings of abnormalities leading to entrapment of the lateral plantar nerve and respective branches in patients complaining of chronic heel pain, whose magnetic resonance imaging exams have showed complete selective fatty atrophy of the abductor digiti quinti muscle. Materials and Methods: Retrospective, analytical, and cross-sectional study. The authors selected magnetic resonance imaging of hindfoot of 90 patients with grade IV abductor digiti quinti muscle atrophy according to Goutallier and Bernageau classification. Patients presenting with minor degrees of fatty muscle degeneration (below grade IV) and those who had been operated on for nerve decompression were excluded. Results: A female prevalence (78.8%) was observed, and a strong correlation was found between fatty muscle atrophy and plantar fasciitis in 21.2%, and ankle varices, in 16.8% of the patients. Conclusion: Fatty atrophy of the abductor digiti quinti muscle is strongly associated with neuropathic alterations of the first branch of the lateral plantar nerve. The present study showed a significant association between plantar fasciitis and ankle varices with grade IV atrophy of the abductor digiti quinti muscle.
RESUMO
Resumo Objetivo: Avaliar a prevalência de achados isolados que causam compressão do primeiro ramo do nervo plantar lateral em pacientes com queixa de dor crônica no calcanhar, cujos exames de ressonância magnética mostraram atrofia gordurosa seletiva completa do músculo abdutor do quinto dedo. Materiais e Métodos: Estudo retrospectivo, analítico e transversal. Selecionamos exames de ressonância magnética do retropé de 90 pacientes que apresentavam atrofia muscular grau IV do abdutor do quinto dedo utilizando a classificação de Goutallier e Bernageau. Foram excluídos do estudo pacientes com níveis menores de degeneração muscular (abaixo do grau IV). Resultados: Houve predomínio do sexo feminino de 78,8% e alto índice de concordância da atrofia gordurosa do músculo abdutor do quinto dedo com fasciite plantar e varizes no tornozelo, respectivamente, encontrados em 21,2% e 16,8% dos pacientes. Conclusão: Atrofia gordurosa do músculo abdutor do quinto dedo está fortemente associada a alterações neuropáticas do primeiro ramo do plantar lateral. Nosso estudo mostrou associação significativa entre a fasciite plantar e varizes do tornozelo com atrofia grau IV do abdutor do quinto dedo.


Full text: Available Index: LILACS (Americas) Type of study: Observational study / Risk factors Language: Portuguese Journal: Radiol. bras Journal subject: Diagnostic Imaging / Radiology Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: Axial Medicina Diagnóstica/BR

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Full text: Available Index: LILACS (Americas) Type of study: Observational study / Risk factors Language: Portuguese Journal: Radiol. bras Journal subject: Diagnostic Imaging / Radiology Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: Axial Medicina Diagnóstica/BR