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Sex-specific differences in ossification patterns of the atlas and axis:a computed tomography study

World Journal of Pediatrics 2022年第4期18卷 263-270页

作者： Wei-Liang Wu Xiao-Bo Shao Yi-Guo Shen Jian-Song Chen Qiang Shu Department of Orthopedic Surgery Children’s HospitalZhejiang University School of MedicineHangzhouChina Department of Cardiac Surgery Children’s HospitalZhejiang University School of MedicineAdministrative BuildingNo.3333 Binsheng RoadHangzhou 310052China

Background We investigated the sex-specific differences in ossification patterns of the first two cervical vertebrae in Chinese *** A retrospective computed tomography(CT)study was performed between June 2016 and December *** younger than 16 years with cervical CT images acquiredsynchondrosis and ossification variants were *** A total of 910 subjects(518 males and 392 females)were included in the *** the Cl vertebra,the neurocentral synchondroses closed at a median age of 8 years in males and 6.3 years in females,and the posterior synchondrosis fused at 5.4 years in males and at 4.4 years in *** anterior arch ossification centers were present in 74 of 411(18%)subjects,whereas posterior arch variants were observed in 18 of 258(7%)*** the C2 vertebra,the sequence of complete fusion was as follows:posterior synchondrosis,neurocentral synchondroses,and dentoneural ***,a fusion line was observed in the dentocentral synchondrosis through *** arch variants of the C2 vertebra occurred in 17 of 248(6.9%)*** was no significant difference between the sexes in ossification *** All synchondroses of the first two cervical vertebrae fuse slightly earlier in *** sequence of fusion follows a posterior-to-anterior and caudal-to-cephalad pattern in both *** variants are not rare and should not be confused with trauma.

关键词： Cervical vertebra Fusion Ossification center Ossification variant synchondrosis

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