in the analyzed material , better compensated posture occurred in the patients with posterior spondylodesis of 8-10 vertebrae and in whom the lower distractor hook rested on the l1-l2 vertebral arches , and when biological maturity of the spine was medium or advanced , and the age at operation ranged from 14 to 18 years and 4 months .
C0039987
posterior
C0037949
spine