Orthopedic Fixation DevicesInternal FixatorsSurgical Fixation DevicesExternal FixatorsBone ScrewsFracture FixationBone NailsBone PlatesFracture Fixation, InternalEquipment ReuseWeight-BearingFracture Fixation, IntramedullaryFracture HealingNitrogen FixationProstheses and ImplantsBiomechanical PhenomenaFemurCadaverMaterials TestingFixation, OcularRotationThoracic VertebraeFractures, BoneRange of Motion, ArticularStress, MechanicalTissue FixationComplement Fixation TestsDevice ApprovalTreatment Outcome