Observation of the posterior superior alveolar artery in the maxillary tuberosity region by computed tomography angiography: Pilot study using Japanese cadaveric specimens

Autor: Yoshio Yamashita, Akio Kuraoka, Atsushi Danjo, Naoko Uchida, Reona Aijima, Kentaro Shibata, Yuki Uchida
Rok vydání: 2022
Předmět:
Zdroj: Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology. 34:108-114
ISSN: 2212-5558
DOI: 10.1016/j.ajoms.2021.08.004
Popis: Objective This study aimed to examine the anatomical features of the posterior superior alveolar artery (PSAA) before it diverged from the maxillary artery (MA) and entered the posterior superior alveolar foramen in a cadaveric specimen using computed tomography angiography (CTA). Methods The participants were 15 Japanese cadavers (21 hemi-heads). A contrast medium was injected from the external carotid artery of the specimen, and the CTA of the maxillary region was obtained. The data were processed using measurement software to examine the running pattern of the PSAA and determine the position of the PSAA origin. Results Two branching patterns of the PSAA origin from the MA were identified: joint branching with the infraorbital artery in 10 hemi-heads (47.6 %) and independent branching from the MA in 11 hemi-heads (52.4 %). The vertical distance from the maxillary alveolar crest of the maxillary tuberosity to the origin was 26.1 ± 3.7 mm for the joint branching pattern and 27.1 ± 4.3 mm for the independent branching pattern. The horizontal distance from the infrazygomatic crest to the origin for joint and independent branching was 24.4 ± 3.4 mm and 25.2 ± 2.8 mm, respectively. Conclusions This result will be useful for CTA examination and surgery in the relevant area.
Databáze: OpenAIRE