LutetiumOctreotideRadiopharmaceuticalsSalvage TherapyLimb SalvageOperative Blood SalvageAmputationTreatment OutcomeIschemiaVascular PatencyLegTibial ArteriesRetrospective StudiesBlood Transfusion, AutologousNeoplasm Recurrence, LocalReoperationLower ExtremityAntineoplastic Combined Chemotherapy ProtocolsCombined Modality TherapyTreatment FailureVeinsPurinesFemoral Artery