all, back, backbone, backs, body, bone, bones, calcification, calcified, calcify, cavities, cavity, column, columns, compression, cord, cords, covering, coverings, disc, discs, disk, disks, dura, dural, failure, intervertebral, l, l-1, l1, layer, layers, ligament, ligaments, longitudinal, low, lower, lumbar, mater, medical, meningeal, meninges, meninx, posterior, repair, rib, ribs, rupture, ruptured, rupturing, sagittal, severe, spinal, spine, spines, spinous, superior, t, t-11, t-12, t11, t11-12, t11-t12, t12, thoracic, thoracolumbar, thorax, unchanged, vertebra, vertebrae, vertebral, 1, 11, 12, 1998