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Deep branch of the radial nerve: effect of pronation/supination on longitudinal nerve alignment.
Mohana-Borges, Aurea V R; Souza, Sergio A L; Mohana-Borges, Ronaldo; Statum, Sheronda; Chung, Christine B.
Afiliación
  • Mohana-Borges AVR; Radiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
  • Souza SAL; Radiology, University of California, San Diego, USA.
  • Mohana-Borges R; Radiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
  • Statum S; Laboratory of Biotechnology and Structural Bioengineering, Biophysics Institute Carlos Chagas Filho, Rio de Janeiro Federal University, Rio de Janeiro, Brazil.
  • Chung CB; Radiology, University of California, San Diego, USA.
Skeletal Radiol ; 52(9): 1683-1693, 2023 Sep.
Article en En | MEDLINE | ID: mdl-37010538
OBJECTIVE: To evaluate the effect of maximal pronation and supination of the forearm on the alignment and anatomic relationship of the deep branch of the radial nerve (DBRN) at the superior arcade of the supinator muscle (SASM) by using high-resolution ultrasound (HRUS). MATERIALS AND METHODS: In this cross-sectional study, HRUS in the long axis of the DBRN was performed in asymptomatic participants enrolled from March to August 2021. DBRN alignment was evaluated by measuring angles of the nerve in maximal pronation and maximal supination of the forearm independently by two musculoskeletal radiologists. Forearm range of motion and biometric measurements were recorded. Student t, Shapiro-Wilk, Pearson correlation, reliability analyses, and Kruskal-Wallis test were used. RESULTS: The study population included 110 nerves from 55 asymptomatic participants (median age, 37.0 years; age range, 16-63 years; 29 [52.7%] women). There was a statistically significant difference between the DBRN angle in maximal supination and maximal pronation (Reader 1: 95% CI: 5.74, 8.21, p < 0.001, and Reader 2: 95% CI: 5.82, 8.37, p < 0.001). The mean difference between the angles in maximal supination and maximal pronation was approximately 7° for both readers. ICC was very good for intraobserver agreement (Reader1: r ≥ 0.92, p < 0.001; Reader 2: r ≥ 0.93, p < 0.001), as well as for interobserver agreement (phase 1: r ≥ 0.87, p < 0.001; phase 2: r ≥ 0.90, p < 0.001). CONCLUSION: The extremes of the rotational movement of the forearm affect the longitudinal morphology and anatomic relationships of the DBRN, primarily demonstrating the convergence of the nerve towards the SASM in maximal pronation and divergence in maximal supination.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Nervio Radial / Antebrazo Tipo de estudio: Observational_studies / Prevalence_studies / Risk_factors_studies Límite: Adolescent / Adult / Female / Humans / Male / Middle aged Idioma: En Revista: Skeletal Radiol Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Nervio Radial / Antebrazo Tipo de estudio: Observational_studies / Prevalence_studies / Risk_factors_studies Límite: Adolescent / Adult / Female / Humans / Male / Middle aged Idioma: En Revista: Skeletal Radiol Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Alemania