Послойная топография костей свода черепа

Abstract

The study involved serial bone sections of 57 (25 male and 32 female) skulls of adults. Every skullcap specimen was sliced in the coronal plane at 7 certain points. Thickness of bone layers was measured on the posterior surfaces of every slice at 5 points: on the median line, the left and right most lateral points, and the points in the middle between the median one and the most lateral ones. Calvarial bone outer table is on average 0.1-0.3 mm thicker in men than in women, and this parameter increases in the posterior skullcap with a peak of 2.7-4.8 mm, regardless of sex. In both sexes, outer table becomes thinner in lateral skullcap areas. Diploe is on average 0.3-0.4 mm thicker in men than in women, irrespective of skullcap area. In the median zones, diploe is much thicker in the occipital region, while laterally this layer is slightly thicker in the frontal region. Calvarial bone inner (vitreous) table is 0.1-0.2 mm thicker in men than in women, without any relation detected between this parameter and skullcap area. The range of inner table thickness variability is rather narrow, 0.8-1.6 mm, and this parameter manifests pronounced discontinuity. In the median zones, inner table is thicker in the frontal and parietal regions. Thickness of every bone layer is important for trepanation and cranioplasty.