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Classification and incidence of pterion patterns of Thai skulls / Clasificación e incidencia de los patrones de pterion en cráneos de Tailandia
Chaijaroonkhanarak, Wunnee; Woraputtaporn, Worawut; Prachaney, Parichat; Amarttayakong, Pattama; Khamanarong, Kimaporn; Pannangrong, Wanassanun; Welbat, Jariya Umka; Iamsaard, Sitthichai.
  • Chaijaroonkhanarak, Wunnee; Khon Kaen University. Faculty of Medicine. Department of Anatomy. Khon Kaen. TH
  • Woraputtaporn, Worawut; Khon Kaen University. Faculty of Medicine. Department of Anatomy. Khon Kaen. TH
  • Prachaney, Parichat; Khon Kaen University. Faculty of Medicine. Department of Anatomy. Khon Kaen. TH
  • Amarttayakong, Pattama; Khon Kaen University. Faculty of Medicine. Department of Anatomy. Khon Kaen. TH
  • Khamanarong, Kimaporn; Khon Kaen University. Faculty of Medicine. Department of Anatomy. Khon Kaen. TH
  • Pannangrong, Wanassanun; Khon Kaen University. Faculty of Medicine. Department of Anatomy. Khon Kaen. TH
  • Welbat, Jariya Umka; Khon Kaen University. Faculty of Medicine. Department of Anatomy. Khon Kaen. TH
  • Iamsaard, Sitthichai; Khon Kaen University. Faculty of Medicine. Department of Anatomy. Khon Kaen. TH
Int. j. morphol ; 35(4): 1239-1242, Dec. 2017. tab, graf
Article in English | LILACS | ID: biblio-893121
ABSTRACT

SUMMARY:

The pterion, a landmark for neurosurgery, is the weakest part of the skull owing to relatively thin bone. Variant patterns of pterion can confuse the clinicians during diagnosis of the lateral skull fractures in emergency situations. Thedifferent pterion types of many races have been reported but not of Thais. In this study; therefore, we investigated the incidence of sutural pterion patterns on of Thai skulls. The infratemporal fossa of 110 sides from 55 dried skulls identified as Thais were observed and classified for individual pterion types. The results showed that the pterion patterns can be classified into 4 types; spheno-parietal (87.27 %), fronto-temporal (4.55 %), uni-epipteric (6.36 %), and multi-epipteric (1.82 %) types. It was found that the spheno-parietal type was dominant in males (61.81 %) than in females (25.45 %). The majority of the skulls showed bilateral symmetry (85.45 %) in all types and the unilateral ones were far less (14.55 %). In bilateral pterion incidence, the spheno-parietal type was approximately 93.61 % while the uni-epipteric type was not found. Moreover, the bilateral multi-epipteric type was found only in one female skull (2.13 %). These findings will be useful for the radiologists and the neurosurgeons concerning lateral skull fractures in emergency diagnosis.
RESUMEN
RESUMEN El pterion es un punto de referencia para la neurocirugía, y es la parte más débil del cráneo debido a estar conformado por hueso relativamente delgado. Los diversos patrones de pterion pueden confundir a los clínicos durante el diagnóstico de fracturas laterales de cráneo en situaciones de emergencia. Con excepción de los tailandeses, diferentes tipos de pterion se han reportado en muchas razas. hemos investigado la incidencia de diversos patrones de pterion en cráneos de Tailandia. Analizamos 110 fosas infratemporales, correspondientes a 55 cráneos secos del Noreste de Tailandia y se clasificaron de acuerdo al tipo de pterion. Los resultados mostraron que el pterion puede clasificarse en 4 tipos esfeno-parietal (87,27 %), fronto-temporal (4,55 %), epiptérico (3,63 %) y multi-epiptérico (1,81 %). Se encontró que el tipo esfeno-parietal tuvo mayor incidencia en hombres (61,81 %) que en mujeres (25,45 %). Además, la incidencia de simetría bilateral (85,45 %) fue mayor que la unilateral (14,55 %). A nivel bilateral, el tipo esfeno-parietal fue de 93,61 %, mientras que el tipo epiptérico no se observó. Por otra parte, el tipo multiepiptérico fue encontrado bilateralmente en un solo cráneo femenino (2,13 %). Esta incidencia puede ser utilizada como un conocimiento básico para los radiólogos tailandeses sobre las fracturas laterales del cráneo en un diagnóstico de emergencia.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Sphenoid Bone / Temporal Bone / Frontal Bone Type of study: Incidence study / Prognostic study / Risk factors / Screening study Limits: Adult / Aged / Aged80 / Female / Humans / Male Country/Region as subject: Asia Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2017 Type: Article Affiliation country: Thailand Institution/Affiliation country: Khon Kaen University/TH

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Full text: Available Index: LILACS (Americas) Main subject: Sphenoid Bone / Temporal Bone / Frontal Bone Type of study: Incidence study / Prognostic study / Risk factors / Screening study Limits: Adult / Aged / Aged80 / Female / Humans / Male Country/Region as subject: Asia Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2017 Type: Article Affiliation country: Thailand Institution/Affiliation country: Khon Kaen University/TH