Fig. 1From: Protection of L1 nerve roots by pre-relieve tension in parallel endplate osteotomy for severe rigid thoracolumbar spine deformitya, b, c, d, e and f The three-dimensional demonstration of parallel endplate osteotomy (PEO). g Osteotomy range includes pedicle of the vertebral arch, 2/3 posterior vertebra, bilateral walls of the vertebra and the posterior wall of the vertebraBack to article page