34
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      The Pterygospinous Foramen (Civinini) and the Pterygoalar (Crotaphitico-Buccinatorius). Laboratory Findings Translated title: El Foramen Pterigoespinoso (Civinini) y el Pterigoalar (Crotafítico-Buccinatorius). Hallazgos de Laboratorio

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          SUMMARY: The Pterygospinous foramen and pterygoalar foramen (crotaphitico-buccinatorius) are variant and atavic formations of the skull base and arise respectively from complete or incomplete idiopathic ossifications of the pterygospinous and pterygoalar ligaments. By proximity with areas of relevance for diagnosis and surgery, such as access pathways to the parapharyngeal and retropharyngeal spaces, it is necessary to be aware of these conditions due to the difficulties generated in surgical maneuvers and the promotion of compressive syndromes of mandibular nerve branches. This study was conducted on 45 samples of dry skulls and disarticulated sphenoid bones belonging to the collection of the Federal University of Juiz de Fora, Governador Valadares campus, Minas Gerais, Brazil. Our results indicated a total incidence of complete and incomplete pterygospinous and pterygoalar foramen (crotaphitico- buccinatorius) in 15, 5 % (7 skulls), with a higher incidence for the incomplete form of pterygospinous foramen (Civinini foramen) in 4 skulls (8.8 %), with 3 presenting unilaterally and 3 presenting bilaterally. The pterygoalar foramen (crotaphitico-buccinatorius or Hyrtl) was noted bilaterally in 1 of the skulls (2.2 %). The pterygospinous foramen and pterygoalar foramen are important findings, sometimes incidental, of an area of great anatomical expressiveness and pathological occurrences, besides the indispensable and unclear studies of phylogenetic order.

          Translated abstract

          RESUMEN: El foramen pterigoespinoso y el foramen pterigoalar (crotafítico-buccinatorius) son formaciones variantes y atávicas de la base del cráneo y surgen respectivamente de osificaciones idiopáticas completas o incompletas, de los ligamentos pterigoespinoso y pterigoalar. Debido a la proximidad con áreas de relevancia para el diagnóstico y la cirugía, como las vías de acceso a los espacios parafaríngeo y retrofaríngeo, es necesario conocer estas condiciones por las dificultades que se generan en las maniobras quirúrgicas. Este estudio se realizó en 45 muestras de cráneos secos y huesos esfenoides desarticulados pertenecientes a la colección de la Universidad Federal de Juiz de Fora, campus Governador Valadares, Minas Gerais, Brasil. Nuestros resultados indicaron una incidencia total de foramen pterigoespinoso y pterigoalar completo e incompleto (crotafítico-buccinatorius) en el 15,5 % (7 cráneos), con una mayor incidencia de la forma incompleta de foramen pterigoespinoso (agujero de Civinini) en 4 cráneos (8,8 %), con 3 de presentación unilateral y 3 de presentación bilateral. El foramen pterigoalar (crotaphitico-buccinatorius o Hyrtl) se observó bilateralmente en 1 de los cráneos (2,2 %). El foramen pterigoespinoso y pterigoalar son hallazgos importantes, a veces incidentales, de un área de gran expresividad anatómica y ocurrencias patológicas, además de los estudios indispensables y poco claros de orden filogenético.

          Related collections

          Most cited references25

          • Record: found
          • Abstract: found
          • Article: not found

          Ossification of ligaments near the foramen ovale: an anatomic study with potential clinical significance regarding transcutaneous approaches to the skull base.

          There is paucity of information regarding the specific anatomy and clinical significance of ossified ligaments near the foramen ovale (e.g., pterygospinous and pterygoalar ligaments). The present study was undertaken to define this anatomy in more detail and to review the literature regarding these anatomic variations.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            Skull base ligamentous mineralisation: evaluation using computed tomography and a review of the clinical relevance

            Objectives To determine the frequency, morphologic and demographic characteristics, and clinical relevance of the mineralisation of six skull base ligaments (interclinoid, caroticoclinoid, petrosphenoid, posterior petroclinoid, pterygospinous, and pterygoalar). Methods This is a retrospective review of 240 CT scans of the paranasal sinuses (ages 6–80 years). A limited systematic review was performed primarily using Embase and Medline databases. Results Ligamentous mineralisation was well delineated on CT and occurred at ≥ 1 location in 58.3% of patients. There was a nonsignificant trend towards a greater incidence with advancing age. The interclinoid and posterior petroclinoid ligaments were most commonly mineralised (22.1% and 18.3%, respectively); the petrosphenoid and pterygoalar ligaments were least frequently mineralised (10.8% and 6.3%, respectively). The mean age of patients with posterior petroclinoid mineralisation was significantly greater than those with interclinoid and petrosphenoid mineralisation and was not seen in patients aged 6–20 years. The literature review highlighted the clinically relevant potential for mineralised ligaments to cause barriers to surgical access (e.g. to the foramen ovale), increase the risk of neurovascular injury during surgery at the skull base (e.g. during anterior clinoidectomy), and predispose to neural impingement. Conclusions Skull base ligamentous mineralisation is commonly encountered on CT imaging. Given the potentially significant clinical implications, an understanding of the morphological appearances is of importance to those planning interventions at the skull base. To the authors’ knowledge, this study is the first to comprehensively evaluate such a wide range of skull base ligaments using CT. For some ligaments, the incidence on CT has not been previously described.
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              The ossified pterygoalar ligament: An anatomical study with pathological and surgical implications

                Bookmark

                Author and article information

                Journal
                ijmorphol
                International Journal of Morphology
                Int. J. Morphol.
                Sociedad Chilena de Anatomía (Temuco, , Chile )
                0717-9502
                February 2021
                : 39
                : 1
                : 198-204
                Affiliations
                [3] Espirito Santo orgnameHigher School of Sciences of Santa Casa de Misericórdia de Vitória orgdiv1Faculty of Medicine Brazil
                [4] Minas Gerais Minas Gerais orgnameUniversidade Federal de Minas Gerais orgdiv1Faculty of Medicine Brazil
                [6] Espirito Santo orgnameFaculty Venda Nova do Imigrante Brazil
                [5] Minas Gerais orgnameFederal University of Juiz de Fora orgdiv1Faculty of Odontology Brazil
                [2] Minas Gerais orgnameFederal University of Juiz de Fora orgdiv1Faculty of Medicine Brazil
                [1] Minas Gerais orgnameFederal University of Juiz de Fora orgdiv1Department of Basic Life Sciences Brazil
                Article
                S0717-95022021000100198 S0717-9502(21)03900100198
                d2c9efb7-c0d1-4b75-8537-4c3aa1e3330f

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 29 June 2020
                : 08 July 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 7
                Product

                SciELO Chile


                Ligamento pterigoalar,Pterygoalar ligament,Oval foramen and Pore crotaphitico-buccinatorius,Foramen oval y poro crotaphitico-buccinatorius,Ligamento pterigoespinoso,Pterygospinous ligament

                Comments

                Comment on this article