Enlarged External Occipital Protuberance in young French individuals' head CT: stability in prevalence, size and type between 2011 and 2019

被引:7
作者
Jacques, Thibaut [1 ,2 ]
Jaouen, Alexandre [1 ,2 ]
Kuchcinski, Gregory [2 ,3 ]
Badr, Sammy [1 ]
Demondion, Xavier [1 ,2 ,4 ]
Cotten, Anne [1 ,2 ]
机构
[1] CHU Lille, Dept Musculoskeletal Radiol, F-59000 Lille, France
[2] Univ Lille, Lille Sch Med, F-59000 Lille, France
[3] CHU Lille, Dept Neuroradiol, F-59000 Lille, France
[4] Univ Lille, Lab Anat, F-59000 Lille, France
关键词
D O I
10.1038/s41598-020-63554-y
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
External Occipital Protuberance (EOP) enlargement has been recently reported to increase in young adults, with a putative link with postural factors such as the use of smartphones. This study aims to analyze finely the changes in prevalence and size of EOP enlargement in millennials, throughout the smartphone era (2011 - 2019). Anonymized head Computerized Tomography (CT) examinations from patients aged 18-30 in 2011 (n=205) or 2019 (n=240), were reviewed to assess the type of EOP and to measure its volume in case of enlargement. Additional CT analyses were performed on two ancient skulls, from a XVIth century young male and a young female Egyptian mummy. There was no significant evolution in the prevalence of EOP enlargement between 2011 (92/205, 44.9%) and 2019 (106/240; 44.2%) (P=0.92). There was no significant evolution either in the distribution of enlarged EOP volumes (P=0.14) or of EOP types (P=0.92) between 2011 and 2019. In the meantime, rates of smartphone ownership in millennials rose from 35% to 98%. Compared to 2019 volumes, the Egyptian mummy displayed an EOP enlargement corresponding to the 85(th) percentile for young women, and the XVIth century skull to the 73(rd) percentile for young men. In conclusion, on a population scale, prevalence and volume of enlarged EOP in millennials remain stable between 2011 and 2019, which makes the impact of rapidly growing modern environmental factors on EOP changes unlikely. EOP enlargement was also already present in ancient skulls from young individuals, with measurements within today's upper ranges.
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页数:9
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