Superion® InterSpinous Spacer for treatment of moderate degenerative lumbar spinal stenosis: durable three-year results of a randomized controlled trial
Patel VV, Nunley PD, Whang PG, Haley TR, Bradley WD, Davis RP, Block JE, Geisler FH. Superion® InterSpinous Spacer for treatment of moderate degenerative lumbar spinal stenosis: durable three-year results of a randomized controlled trial. Journal Of Pain Research 2015, Volume 8: 657-662. PMID: 26491369, PMCID: PMC4599047, DOI: 10.2147/jpr.s92633.Peer-Reviewed Original ResearchDegenerative lumbar spinal stenosisLumbar spinal stenosisPrimary composite endpointSpinal stenosisComposite endpointClinical outcomesDrug Administration Investigational Device Exemption trialDisease-specific functional outcomesInvestigational device exemption trialDurable clinical improvementLeg pain severityRandomized study groupsZurich Claudication QuestionnaireProcedure-related complicationsIntermittent neurogenic claudicationTreatment of patientsProportion of subjectsThree-year resultsTreatment of subjectsIndividual patient successNeurogenic claudicationPrimary endpointClinical improvementCorresponding success ratesPain severity