Anatomical study of spinal accessory nerve using ultrasonography |
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| Authors: | Clarissa Canella,Xavier Demondion,Evandro Abreu,Edson Marchiori,Hervé Cotten,Anne Cotten |
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| Affiliation: | 1. Service de Radiologie et d’Imagerie Musculosquelettique, Centre de Consultations et d’Imagerie de l’Appareil Locomoteur, CHRU, 59037, Lille, France;2. Serviço de Radiologia e Diagnostico por Imagem, Universitadade Federal do Rio de Janeiro, Rio de janeiro, Brazil;3. Laboratoire d’Anatomie, Faculté de Médecine de Lille, 59037, Lille, France;4. Anatomie et cytologie pathologiques, Bd de la Liberté, 59000, Lille, France |
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| Abstract: | ObjectiveThe purpose of our study was to demonstrate that ultrasonography may allow a precise assessment of the course and relationships of the spinal accessory nerve (SAN).Material and methodsThis study, initially undertaken in 7 cadavers, was followed by high-resolution ultrasonographic study in 15 volunteers (30 nerves) by two radiologists in consensus. The location, course and relations to the adjacent anatomic structures of the SAN were analyzed.ResultsThe precise course of the SAN between the lateroposterior border of the sternocleidomastoid muscle and the anterior border of the trapezius muscle could be identified by high-resolution ultrasonography. In contrast, clinical bone landmarks were not found helpful for the identification of the nerve.ConclusionThe SAN can be clearly depicted by means of ultrasonography. Knowledge of the nerve's precise location, which may evidence individual variations, may have useful clinical applications. |
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| Keywords: | Spinal accessory Nerve Anatomy Ultrasonography |
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