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. 2018 Apr 5;53(3):373-377.
doi: 10.1016/j.rboe.2018.03.015. eCollection 2018 May-Jun.

A study on the prevalence of the anconeus epitrochlearis muscle by magnetic resonance imaging

Affiliations

A study on the prevalence of the anconeus epitrochlearis muscle by magnetic resonance imaging

Sergio Ricardo Rios Nascimento et al. Rev Bras Ortop. .

Abstract

Objective: To analyze magnetic resonance imaging (MRI) of the elbow area to quantify the presence of the anconeus epitrochlearis muscle.

Methods: A total of 232 exams were analyzed; 218 were included, of which 141 were of men and 77, women.

Results: Presence of the muscle was observed in 29 cases (13.3%), demonstrating that the presence of this muscle on images does not have a statistical correlation with the gender or age of the individual.

Conclusion: The prevalence of the anconeus epitrochlearis muscle is variable, without a pattern of normality.

Objetivo: Analisar imagens de ressonância magnética da região do cotovelo para quantificar a presença o músculo ancôneo epitroclear.

Métodos: Foram analisados 232 exames, foram incluídos 218, dos quais 141 eram homens e 77 mulheres.

Resultados: Observou-se a presença do músculo em 29 casos (13,3%), a presença desse músculo em imagens não apresentou correlação estatística com o gênero ou com a idade do indivíduo.

Conclusão: A prevalência do músculo ancôneo epitroclear é variável, sem a presença de um padrão de normalidade.

Keywords: Anatomical variation; Musculoskeletal system; Upper limb.

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Figures

Fig. 1
Fig. 1
Compilation of the images from the AnalyzePro volumetry software. (A) Coronal reconstruction of the axial sequence shown in (D); the AEM is highlighted from the cut-to-cut selection in an axial plane. (B) Volumetric selection in a frontal plane. (C) Volumetric selection in a lateral plane. (D) Axial T1-weighted image, highlighting the AEM.
Fig. 2
Fig. 2
Left elbow axial T1-weighted magnetic resonance imaging. (A) Absence of AEM. Star, medial epicondyle; arrow, ulnar nerve; arrowhead, fibrous retinaculum (Osborne's ligament). (B) Presence of AEM. Star, medial epicondyle; arrow, ulnar nerve; arrowhead, AEM; L, lateral; M, medial.

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