SacrumChordomaBoswelliaSpinal NeoplasmsSacroiliac JointGiant Cell Tumor of BonePelvisLordosisPelvic BonesResins, PlantIliumCoccyxLumbar VertebraeInfusions, IntraosseousLumbosacral RegionLumbosacral PlexusSpinal FusionFractures, StressHistamine ReleaseIschiumPolyradiculopathyOils, VolatileSacrococcygeal RegionScoliosisSpinal FracturesSpineCauda EquinaBone NeoplasmsBone Screws