Harthmann da Silva Tales, Ellwanger Joel Henrique, Silva Helen Tais da Rosa, Moraes Daniela, Dotto Anderson Cesar, Viera Vinicius de Aguiar, de Campos Deivis
Curso de Odontologia, Departamento de Enfermagem e Odontologia, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, Brazil.
Curso de Ciências Biológicas, Departamento de Biologia e Farmácia, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, Brazil ; Departamento de Biologia e Farmácia, Laboratório de Histologia e Patologia, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, Brazil.
J Neurol Surg B Skull Base. 2013 Apr;74(2):108-12. doi: 10.1055/s-0033-1333615. Epub 2013 Jan 22.
The middle meningeal artery (MMA) is the largest branch of the internal maxillary artery supplying the meninges. The complex sequence of MMA development gives many opportunities for variant anatomy. Additionally, the variations in the origin of the MMA are of clinical importance when dealing with fractures of the base of the skull, epidural hematomas, and bypass procedures. Therefore, various anastomosis and aberrant origins of the MMA have been documented in literature. However, there are no reports about some morphometric aspects of this important arterial segment. Thus, in this study, we decided to investigate the anatomical organization of the MMA through the bony groove measurements from human skulls (n = 50 subjects). Six measurements were performed bilaterally: angle of the main trunk, length of the main trunk, angle between the frontal and parietal branches, length of the frontal branch, length of the parietal branch, and length of the bony tunnel formed by the frontal branch. We showed that the anatomical organization of the MMA is bilaterally similar, except for the length of the parietal branch (p = 0.009). Moreover, our results provide baseline normal values for future studies aimed at further elucidating the functional and morphological pattern of the MMA.
脑膜中动脉（MMA）是上颌内动脉供应脑膜的最大分支。MMA发育的复杂过程为解剖变异提供了诸多机会。此外，在处理颅底骨折、硬膜外血肿和搭桥手术时，MMA起源的变异具有临床重要性。因此，文献中已记载了MMA的各种吻合和异常起源情况。然而，关于这一重要动脉段的一些形态学方面尚无报道。因此，在本研究中，我们决定通过对人类颅骨（n = 50例受试者）的骨沟测量来研究MMA的解剖结构。双侧进行了六项测量：主干角度、主干长度、额支与顶支之间的夹角、额支长度、顶支长度以及额支形成的骨管长度。我们发现，除顶支长度外（p = 0.009），MMA的解剖结构在双侧是相似的。此外，我们的结果为未来旨在进一步阐明MMA功能和形态模式的研究提供了基线正常值。
