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Trigeminal cave and ganglion: an anatomical review / Cavo y ganglio trigeminal: una revisión anatómica
Ajayi, N. O; Lazarus, L; Satyapal, K. S.
  • Ajayi, N. O; University of KwaZulu-Natal. Department of Clinical Anatomy School. Medical Sciences College of Health Sciences. Laboratory Medicine. Durban. ZA
  • Lazarus, L; University of KwaZulu-Natal. Department of Clinical Anatomy School. Medical Sciences College of Health Sciences. Laboratory Medicine. Durban. ZA
  • Satyapal, K. S; University of KwaZulu-Natal. Department of Clinical Anatomy School. Medical Sciences College of Health Sciences. Laboratory Medicine. Durban. ZA
Int. j. morphol ; 31(4): 1444-1448, Dec. 2013. ilus
Article in English | LILACS | ID: lil-702331
ABSTRACT
The trigeminal cave (TC) is a special channel of dura mater, which extends from the posterior cranial fossa into the posteromedial portion of the middle cranial fossa at the skull base. The TC contains the motor and sensory roots of the trigeminal nerve, the trigeminal ganglion (TG) as well as the trigeminal cistern. This study aimed to review the anatomy of the TC and TG and determine some parameters of the TC. The study comprised two subsets: A) Cadaveric dissection on 30 sagitally sectioned formalin fixed heads and B) Volume injection. We found the dura associated with TC arranged in three distinct layers. TC had relations with internal carotid artery, the cavernous sinus, the superior petrosal sinus, the apex of petrous temporal bone and the endosteal dura of middle cranial fossa. The mean volume of TC was 0.14 ml. The mean length and breadth of TG were 18.3 mm and 7.9 mm, respectively, mean width and height of trigeminal porus were 7.9 mm and 4.1 mm, respectively, and mean length of terminal branches from TG to point of exit within skull was variable. An understanding of the precise formation of the TC, TG, TN and their relations is important in order to perform successful surgical procedures and localized neural block in the region of the TC.
RESUMEN
El cavo trigeminal (CT) de la duramadre es un conducto especial que se extiende desde la fosa craneal posterior a la parte posteromedial de la fosa craneal media en la base del cráneo. El CT contiene las raíces motoras y sensoriales del nervio trigémino (NT), ganglio trigeminal (GT), así como la cisterna trigeminal. Este estudio tuvo como objetivo examinar la anatomía del CT y GT y para determinar algunos parámetros del CT. El estudio se realizó en dos etapas: A) la disección anatómica de 30 cabezas seccionadas sagitalmente y B) la inyección para estimar volumen. Fueron encontrados tres capas distintas de duramadre asociadas al CT. El CT se relacionó con la arteria carótida interna, el seno cavernoso, el seno petroso superior, el vértice de la porción petrosa del hueso temporal y la dura endosteal de la fosa craneal media. El volumen medio del CT fue de 0,14 ml. La longitud media y la amplitud del GT fueron 18,3 mm y 7,9 mm, respectivamente. La media del ancho y alto del poro trigeminal fueron 7,9 mm y 4,1 mm, respectivamente; la longitud media de las ramas terminales del GT al salir del cráneo fue variable. El conocimiento preciso de la formación del CT, GT, NT y sus relaciones es necesario para realizar procedimientos quirúrgicos exitosos o el bloqueo nervioso localizado en la región del CT.
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Full text: Available Index: LILACS (Americas) Main subject: Trigeminal Nerve / Cranial Fossa, Middle Limits: Humans Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2013 Type: Article Affiliation country: South Africa Institution/Affiliation country: University of KwaZulu-Natal/ZA

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Full text: Available Index: LILACS (Americas) Main subject: Trigeminal Nerve / Cranial Fossa, Middle Limits: Humans Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2013 Type: Article Affiliation country: South Africa Institution/Affiliation country: University of KwaZulu-Natal/ZA