Liang X, Jacobs R, Lambrichts I, Vandewalle G, van Oostveldt D, Schepers E, Adriaensens P, Gelan J
Oral Imaging Centre and Department of Periodontology, Faculty of Medicine, Katholieke Universiteit Leuven, Kapucijnenvoer 7, B-3000 Leuven, Belgium.
Dentomaxillofac Radiol. 2005 Nov;34(6):362-8. doi: 10.1259/dmfr/75895125.
To assess histologically the true content of the superior genial spinal foramen and to match these findings to the microanatomical canal content observed using high-resolution magnetic resonance images of the same region.
Ten human mandibular specimens were imaged using a 9.4 Tesla MRI unit. Afterwards, eight specimens were decalcified, embedded in paraffin and serially sectioned (7 microm) for histological examination; the remaining two were embedded in methylmethacrylate and sectioned (50-60 microm). All sections were examined using routine light microscopy to inspect the superior genial spinal foramen region and its content.
Histological observations of the superior genial spinal foramen confirmed the presence of a well-defined neurovascular bundle, with branches of the lingual nerve and lingual artery. The canal had an average diameter exceeding 1 mm and could thus be considered significant.
The present study confirms the existence of a true superior genial spinal foramen's bony canal with neural and blood vessel content. These findings imply that surgical procedures should consider a proper preoperative assessment of the neurovascular trajectory of the superior genial spinal foramen.
通过组织学方法评估颏棘上孔的实际内容物，并将这些发现与使用同一区域的高分辨率磁共振图像观察到的微观解剖管内容物进行匹配。
使用9.4特斯拉的磁共振成像设备对10个人类下颌骨标本进行成像。之后，将8个标本脱钙、石蜡包埋并连续切片（7微米）进行组织学检查；其余2个标本用甲基丙烯酸甲酯包埋并切片（50 - 60微米）。所有切片均采用常规光学显微镜检查，以观察颏棘上孔区域及其内容物。
颏棘上孔的组织学观察证实存在明确的神经血管束，伴有舌神经和舌动脉的分支。该管平均直径超过1毫米，因此可认为具有重要意义。
本研究证实存在真正的颏棘上孔骨性管道，其中含有神经和血管。这些发现意味着手术操作应考虑对颏棘上孔的神经血管走行进行适当的术前评估。
