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目的:探讨以乳突切迹和翼钩为基点的侧颅底分区新方法。方法:在乳突切迹后缘、翼钩、枕骨大孔前缘中点和颧根四个结构间相互连线,区分侧颅底并测量连线的长度。结果:乳突切迹与侧颅底重要结构的关系密切,切迹后缘与翼钩连线和正中线将侧颅底分成内、外侧两个大的三角区,每个区再分成前后两个三角区共四个三角区,即腭和颞下三角、咽三角、关节和听三角、血管神经三角,其中血管神经三角的三边长度左右侧分别为(74.52±5.47)mm和(74.66±5.41)mm、(59.77±3.84)mm和(59.67±3.56)mm、(42.23±3.11)mm和(42.48±2.60)mm。结论:本研究提供了新的侧颅底分区方法,且血管神经三角的区域划分更为科学,为临床侧颅底手术入路和定位提供了解剖学参考。
OBJECTIVE: To explore a new method of lateral skull basement based on mastoid notch and wing hook. Methods: The posterior margin of the mastoid notch, the wing hook, the middle point of the front of the foramen magnum, and the zygomatic root were connected with each other. The lateral skull base was distinguished and the length of the connection was measured. Results: The relationship between the mastoid notch and the important structure of the skull base was close. The trailing edge of the notch and the connection of the wing hook and the median line divided the skull base into two large triangular areas inside and outside, and each area was subdivided into two triangles There are four triangular regions in the region, namely, the palate, the inferior third triangle, the pharynx triangle, the joints, the auditory trigone, and the vascular neuron triangle. The length of the three sides of the vascular neuron is 74.52 ± 5.47 mm and 74.66 ± 5.41 mm, mm, (59.77 ± 3.84) mm and (59.67 ± 3.56) mm, (42.23 ± 3.11) mm and (42.48 ± 2.60) mm, respectively. Conclusion: This study provides a new method for lateral skull base partitioning, and the regional division of vascular neurons is more scientific. It provides an anatomical reference for clinical approach and positioning of lateral skull base surgery.