=====Craniopelvic alignment=====
Craniopelvic alignment became rapidly positive with age, particularly in the eighth decade. The cranial center of gravity (CCG) measurement correlated the most with age and may be a useful index marker of global spinal balance in decision making for surgical treatment of adult deformity involving cervical and thoracolumbar lesions
((Yoshida G, Yasuda T, Togawa D, Hasegawa T, Yamato Y, Kobayashi S, Arima H,
Hoshino H, Matsuyama Y. Craniopelvic alignment in elderly asymptomatic
individuals: analysis of 671 cranial centers of gravity. Spine (Phila Pa 1976).
2014 Jun 15;39(14):1121-7. doi: 10.1097/BRS.0000000000000360. PubMed PMID:
24732852.
)).