Study of the fetal anatomical varieties of the sciatic nerve in Córdoba, Argentina
The sciatic nerve originates in the spinal nerves from L4 to S3 and it is the terminal root of the sacral plexus. It emerges from the pelvis through the greater sciatic foramen, generally passing directly underneath the piriformis muscle along with other neurovascular structures. Different varieties...
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| Autores principales: | , , , , |
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| Formato: | Artículo revista |
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Universidad Nacional Córdoba. Facultad de Ciencias Médicas. Secretaria de Ciencia y Tecnología
2022
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/med/article/view/38937 |
| Aporte de: |
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I10-R327-article-38937 |
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ojs |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-327 |
| container_title_str |
Revista de la Facultad de Ciencias Médicas de Córdoba |
| format |
Artículo revista |
| topic |
sciatic nerve anatomical varieties fetal Anatomy nervio ciático variedades anatómicas anatomía fetal . |
| spellingShingle |
sciatic nerve anatomical varieties fetal Anatomy nervio ciático variedades anatómicas anatomía fetal . Pizarro, LS Bonada, GB Merino Rosas , X Sanchez Carpio , D Corball , AG Study of the fetal anatomical varieties of the sciatic nerve in Córdoba, Argentina |
| topic_facet |
sciatic nerve anatomical varieties fetal Anatomy nervio ciático variedades anatómicas anatomía fetal . |
| author |
Pizarro, LS Bonada, GB Merino Rosas , X Sanchez Carpio , D Corball , AG |
| author_facet |
Pizarro, LS Bonada, GB Merino Rosas , X Sanchez Carpio , D Corball , AG |
| author_sort |
Pizarro, LS |
| title |
Study of the fetal anatomical varieties of the sciatic nerve in Córdoba, Argentina |
| title_short |
Study of the fetal anatomical varieties of the sciatic nerve in Córdoba, Argentina |
| title_full |
Study of the fetal anatomical varieties of the sciatic nerve in Córdoba, Argentina |
| title_fullStr |
Study of the fetal anatomical varieties of the sciatic nerve in Córdoba, Argentina |
| title_full_unstemmed |
Study of the fetal anatomical varieties of the sciatic nerve in Córdoba, Argentina |
| title_sort |
study of the fetal anatomical varieties of the sciatic nerve in córdoba, argentina |
| description |
The sciatic nerve originates in the spinal nerves from L4 to S3 and it is the terminal root of the sacral plexus. It emerges from the pelvis through the greater sciatic foramen, generally passing directly underneath the piriformis muscle along with other neurovascular structures. Different varieties in the relationship between the sciatic nerve and the piriformis muscle have been described. The most used one defines six different types. Locally, there are few studies about the topic. For this reason, from the Fetal Anatomy Area of the Normal Anatomy Chair, FCM-UNC, we proposed the study of the different varieties of the sciatic nerve through serial dissections of samples from the city of Córdoba. The aim was to determine the incidence of the different sciatic nerve varieties related to the piriformis muscle.The study was carried out on fetal cadaveric samples, under 500 grams of weight, provided by Misericordia Hospital, Córdoba. Sixty gluteal regions corresponding to thirty fetuses between 15 and 22 weeks, sixteen females and fourteen males, were dissected.The following varieties were found: type 1 or classic variety (77%); type 2 (17%) with the muscle perforated by the common fibular nerve while the tibial nerve goes underneath; type 3 (3%) with the origin of the common fibular nerve over the muscle. Another variety, not described in Beaton and Anson´s classification, was found and was called type 4 (3%), with a branch going through the piriformis muscle thickness and two branches coming underneath it.Type 2 incidence is higher than in other studies and type 3 is within the descripted ranges. This medical investigation provides a database from Cordoba, Argentina, about the incidence, morphological characteristics, and photographic documentation of the different sciatic nerve varieties. The knowledge of these varieties will be very useful for the healthcare professionals to improve diagnosis quality and to avoid sciatic nerve damage when performing a surgical procedure in the region. |
| publisher |
Universidad Nacional Córdoba. Facultad de Ciencias Médicas. Secretaria de Ciencia y Tecnología |
| publishDate |
2022 |
| url |
https://revistas.unc.edu.ar/index.php/med/article/view/38937 |
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I10-R327-article-389372024-04-15T16:14:45Z Study of the fetal anatomical varieties of the sciatic nerve in Córdoba, Argentina Estudio de las variedades anatómicas fetales del nervio ciático en Córdoba, Argentina . Pizarro, LS Bonada, GB Merino Rosas , X Sanchez Carpio , D Corball , AG sciatic nerve anatomical varieties fetal Anatomy nervio ciático variedades anatómicas anatomía fetal . The sciatic nerve originates in the spinal nerves from L4 to S3 and it is the terminal root of the sacral plexus. It emerges from the pelvis through the greater sciatic foramen, generally passing directly underneath the piriformis muscle along with other neurovascular structures. Different varieties in the relationship between the sciatic nerve and the piriformis muscle have been described. The most used one defines six different types. Locally, there are few studies about the topic. For this reason, from the Fetal Anatomy Area of the Normal Anatomy Chair, FCM-UNC, we proposed the study of the different varieties of the sciatic nerve through serial dissections of samples from the city of Córdoba. The aim was to determine the incidence of the different sciatic nerve varieties related to the piriformis muscle.The study was carried out on fetal cadaveric samples, under 500 grams of weight, provided by Misericordia Hospital, Córdoba. Sixty gluteal regions corresponding to thirty fetuses between 15 and 22 weeks, sixteen females and fourteen males, were dissected.The following varieties were found: type 1 or classic variety (77%); type 2 (17%) with the muscle perforated by the common fibular nerve while the tibial nerve goes underneath; type 3 (3%) with the origin of the common fibular nerve over the muscle. Another variety, not described in Beaton and Anson´s classification, was found and was called type 4 (3%), with a branch going through the piriformis muscle thickness and two branches coming underneath it.Type 2 incidence is higher than in other studies and type 3 is within the descripted ranges. This medical investigation provides a database from Cordoba, Argentina, about the incidence, morphological characteristics, and photographic documentation of the different sciatic nerve varieties. The knowledge of these varieties will be very useful for the healthcare professionals to improve diagnosis quality and to avoid sciatic nerve damage when performing a surgical procedure in the region. El nervio ciático tiene su origen en los nervios espinales desde L4 a S3 y es la rama terminal del plexo sacro. Emerge de la pelvis a través del foramen ciático mayor, situándose generalmente inferior al músculo piriforme junto con otras estructuras vasculonerviosas. Se han descripto diferentes variedades vinculadas a la relación del nervio ciático con el músculo piriforme. La más usada define 6 tipos. A nivel local, los estudios sobre el tema son mínimos. Por esta razón, desde el Área de Anatomía Fetal de la Cátedra de Anatomía Normal, FCM-UNC, se propuso el estudio de las variedades del nervio ciático mediante disecciones en serie a partir de una muestra de Córdoba.El objetivo fue determinar la incidencia de las variedades del nervio ciático en relación al músculo piriforme.Se realizaron los estudios en material cadavérico fetal, menor a 500 gramos, cedido por el Hospital Misericordia, Córdoba. Se disecaron 60 regiones glúteas correspondientes a 30 fetos de 15 a 22 semanas, 16 femeninos y 14 masculinos. Se utilizó instrumental de microdisección y lupas binoculares.Se hallaron las siguientes variedades: tipo 1 o variedad clásica (77%); tipo 2 (17%) con perforación del músculo por el nervio fibular común, mientras que el nervio tibial pasa por debajo; tipo 3 (3%) con un origen del nervio fibular común por encima del músculo y, describimos una variedad no incluida en la clasificación de Beaton y Anson que en este trabajo se denominó tipo 4 (3%) con una rama que atraviesa el espesor del musculo piriforme y dos ramas que emergen por debajo del mismo. La incidencia del tipo 2 es mayor a las de otros estudios y la variedad tipo 3 está dentro de los valores descriptos. Este estudio produce una base de datos nativa de Córdoba, Argentina, de la incidencia, características morfológicas y documentación fotográfica de las variedades del nervio ciático. El conocimiento de éstas sirve a los profesionales de la salud para mejorar la calidad de los diagnósticos y evitar la lesión del nervio ciático durante procedimientos quirúrgicos en la región. . Universidad Nacional Córdoba. Facultad de Ciencias Médicas. Secretaria de Ciencia y Tecnología 2022-10-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion texto texto . https://revistas.unc.edu.ar/index.php/med/article/view/38937 Revista de la Facultad de Ciencias Médicas de Córdoba.; Vol. 79 No. Suplemento JIC XXIII (2022): Suplemento JIC XXIII Revista de la Facultad de Ciencias Médicas de Córdoba; Vol. 79 Núm. Suplemento JIC XXIII (2022): Suplemento JIC XXIII Revista da Faculdade de Ciências Médicas de Córdoba; v. 79 n. Suplemento JIC XXIII (2022): Suplemento JIC XXIII 1853-0605 0014-6722 http://creativecommons.org/licenses/by-nc/4.0 |