Moreano E H, Paparella M M, Zelterman D, Goycoolea M V
State University of New York, Stony Brook School of Medicine.
Laryngoscope. 1994 May;104(5 Pt 1):612-8. doi: 10.1002/lary.5541040515.
A total of 1000 human temporal bones were used to study the prevalence of carotid canal dehiscence, microdehiscence, and thin bony coverage. Additionally, this study compares the prevalence according to sex and temporal bone age. A carotid canal dehiscence was detected in 77 (7.7%) bones. It was present bilaterally in 23.2% of the paired temporal bones. The prevalence of carotid canal dehiscence decreases with increasing temporal bone age. It was found in 10 (15.9%) bones in the younger than 2 age group, as opposed to 43 (6.3%) bones from the 40 and older group. The concept of microdehiscence of the carotid canal is introduced. A carotid canal microdehiscence was found in 74 (7.4%) bones. Microdehiscences were noted to occur bilaterally in 12.3% of the paired bones. The prevalence of carotid canal microdehiscence also decreases with increasing temporal bone age. It was detected in 7 (11.1%) bones in the younger than 2 age group, in contrast to 51 (7.5%) bones in the 40 and older group. A total of 134 (15.5%) temporal bones were found to have a thin bony coverage, without the presence of a dehiscence or microdehiscence. The prevalence of thin coverage was noted to increase linearly with age. A thin carotid canal was found in 2 (8.3%) bones from the younger than 2 age group, whereas 113 (17.3%) temporal bones from the 40 and older group exhibited this entity. To the best of our knowledge, this is the first systematic study of histologic sections of a large number of temporal bones that looks at these entities.
总共使用了1000块人类颞骨来研究颈动脉管裂开、微小裂开及薄骨覆盖的发生率。此外，本研究还比较了不同性别和颞骨年龄的发生率。在77块（7.7%）颞骨中检测到颈动脉管裂开。在23.2%的双侧颞骨中双侧存在该情况。颈动脉管裂开的发生率随颞骨年龄的增加而降低。在2岁以下年龄组的10块（15.9%）颞骨中发现了颈动脉管裂开，而在40岁及以上年龄组的43块（6.3%）颞骨中发现了该情况。引入了颈动脉管微小裂开的概念。在74块（7.4%）颞骨中发现了颈动脉管微小裂开。在12.3%的双侧颞骨中双侧出现微小裂开。颈动脉管微小裂开的发生率也随颞骨年龄的增加而降低。在2岁以下年龄组的7块（11.1%）颞骨中检测到微小裂开，相比之下，在40岁及以上年龄组的51块（7.5%）颞骨中检测到该情况。总共发现134块（15.5%）颞骨有薄骨覆盖，且不存在裂开或微小裂开。薄骨覆盖的发生率随年龄呈线性增加。在2岁以下年龄组的2块（8.3%）颞骨中发现了薄颈动脉管，而在40岁及以上年龄组的113块（17.3%）颞骨中出现了这种情况。据我们所知，这是首次对大量颞骨组织切片进行的系统研究，观察了这些情况。
