Lumbosacral RegionSacrumThoracic VertebraeLumbosacral PlexusLumbar VertebraeSpinal FracturesKyphosisSpinal FusionInternal FixatorsBone ScrewsScoliosisOrthopedic Fixation DevicesSpinal CanalSpinal CordSpineSpinal InjuriesSpinal Nerve RootsSpinal NeoplasmsDecompression, SurgicalIntervertebral Disc DisplacementSpinal CurvaturesFracture Fixation, InternalSpinal DiseasesLordosis