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Published on: August 18, 2023
An Anatomical Investigation Regarding the Parietal Foramen in 174 Adult Parietal Bones
Latif Sağlam1, İrşad Allahverdiyev2, Ali Efruz Sordi2
1Department of Anatomy, İstanbul University, İstanbul Faculty of Medicine, İstanbul, Türkiye.
Objective:
Investigating all anatomical aspects of the parietal foramen (PF) is essential. This study aimed to examine the anatomical features of the PF.
Materials And Methods:
A total of 174 dry adult human parietal bones (81 right and 93 left) were carefully examined. The frequency, shape, and direction of the PF were recorded. Measurements included the diameter of the PF (DPF), the distance of the PF to the sagittal suture (DSS), the distance of the PF to the occipital angle (DPO), and the length of the sagittal suture (LSS). Additionally, to determine the topography of the PF (TPF), the LSS/DPO ratio was calculated. The DPF was measured using needles of various diameters, while all distances were measured using a digital caliper.
Results:
Among the parietal bones, 112 (64.3%) had the PF, while 62 (35.7%) had none. A total of 118 PFs were identified on the 112 bones: 52 on the right side, 58 on the left side, and 8 on the sagittal suture. The foramen was single in 90.7% of cases, double in 6.8%, and triple in 2.5%. The parietal foramen appeared circular in 94.1% and oval in 5.9% of cases. Most foramina were oriented in a posteroanterior direction. The mean measurements for DPF, DSS, DPO, and LSS were 1.7±0.6 mm, 6.81±3.40 mm, 33.81±12.43 mm, and 108.94±6.91 mm, respectively. Additionally, the TPF was approximately 3:1.
Conclusion:
The data obtained in this study may be important for enhancing the success rate of invasive procedures involving the PF or its adjacent structures, as well as for reducing or preventing complications.
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