目的:本研究的目的是确定副缝线和二分骨类型的存在和发生率,及其对群体亲和力和临床意义的影响。
方法:我们检查了120个干燥的头骨和50个zy骨,以评估是否存在,频率,和副骨缝线的位置以及二分骨的亚型。形态测量分析包括用辅助缝线(AS)测量骨的总宽度和长度,AS的总长度,以及AS和各种解剖标志之间的最短距离。
结果:在120个干燥头骨中的14个(11.6%)和50个zy骨中的1个(2%)中观察到了二分zy骨,表明总发生率为16例(8.82%)。在11例病例中,AS主要位于后外侧(6例男性,五名女性),在两个病例中(一个男性,一名女性),在一个案例中(男性),在一个病例中(男性)是外侧。AS的分布存在显著差异(p<0.001)。值得注意的是,垂直的下二部zy型,这在文献中没有报道过,已确定。在各种解剖标志之间观察到相关性。在女性中,AS的长度有显著差异(p=0.038)。基于身体侧,AS和颌面孔(ZFF)之间的最短距离也存在显着差异(p=0.034)。
结论:我们的研究表明,二分骨并不常见,表明其作为存在于某些个体中的形态变异的意义。VII型二部颧骨发病率最高,提示某些亚型患病率的潜在种族特异性差异。缝线分布的一致模式,随着缝线模式的不对称性和可变性,强调其潜在的临床相关性。
OBJECTIVE: This study aimed to determine the presence and incidence of accessory sutures and bipartite zygomatic bone types, and their effects on population affinity and clinical significance.
METHODS: We examined 120 dry skulls and 50 zygomatic bones to evaluate the presence, frequency, and location of accessory zygomatic sutures as well as subtypes of bipartite zygomatic bones. Morphometric analysis included measuring the total width and length of the zygomatic bone with accessory sutures (ASs), the total length of the AS, and the shortest distance between the AS and various anatomical landmarks.
RESULTS: Bipartite zygomatic bone was observed in 14 of 120 dry skulls (11.6%) and 1 of 50 zygomatic bones (2%), indicating an overall incidence of 16 occurrences (8.82%). The ASs were predominantly located posterolaterally in 11 cases (six males, five females), anteromedially in two cases (one male, one female), superiorly in one case (male), and superolaterally in one case (male). Significant differences were noted in the distribution of the ASs (p < 0.001). Notably, a vertical inferior bipartite zygomatic type, which has not been reported in the literature, was identified. Correlations were observed between the various anatomical landmarks. Among females, the length of AS was significantly different (p = 0.038). Significant differences were also noted in the shortest distance between the AS and the zygomaticofacial foramen (ZFF) based on the body side (p = 0.034).
CONCLUSIONS: Our study suggests that the bipartite zygomatic bone is not a common occurrence, indicating its significance as a morphological variation present in certain individuals. The type VII bipartite zygomatic bone exhibited the highest incidence rate, suggesting potential ethnic-specific differences in the prevalence of certain subtypes. The consistent pattern of suture distribution, along with the asymmetry and variability in suture patterns, emphasizes its potential clinical relevance.