2022
Underweight patients are the highest risk body mass index group for perioperative adverse events following stand-alone anterior lumbar interbody fusion
Ottesen TD, Galivanche AR, Greene JD, Malpani R, Varthi AG, Grauer JN. Underweight patients are the highest risk body mass index group for perioperative adverse events following stand-alone anterior lumbar interbody fusion. The Spine Journal 2022, 22: 1139-1148. PMID: 35231643, DOI: 10.1016/j.spinee.2022.02.012.Peer-Reviewed Original ResearchConceptsBody mass indexNational Surgical Quality Improvement Program databaseQuality Improvement Program databaseAnterior lumbar interbody fusionObese class 1Improvement Program databaseClass 2 patientsAdverse eventsUnderweight patientsBMI categoriesAdverse outcomesBMI spectrumInterbody fusionProgram databaseTwo-level anterior lumbar interbody fusionSurgeons National Surgical Quality Improvement Program databaseMultivariate analysisThirty-day adverse eventsWorld Health Organization categoriesBody mass index groupsPostoperative adverse eventsRetrospective cohort studyPerioperative adverse eventsNormal-weight subjectsPost-operative infection
2018
Different Fusion Approaches for Single-level Lumbar Spondylolysis Have Similar Perioperative Outcomes
Gala RJ, Bovonratwet P, Webb ML, Varthi AG, Daubs MD, Grauer JN. Different Fusion Approaches for Single-level Lumbar Spondylolysis Have Similar Perioperative Outcomes. Spine 2018, 43: e111-e117. PMID: 28591074, DOI: 10.1097/brs.0000000000002262.Peer-Reviewed Original ResearchConceptsTransforaminal lumbar interbody fusionAnterior lumbar interbody fusionPosterior spinal fusionPerioperative adverse eventsAdverse eventsLong-term outcomesLumbar interbody fusionLumbar spondylolysisPerioperative outcomesOperative timeSurgical approachFusion groupInterbody fusionSurgeons National Surgical Quality Improvement databaseNational Surgical Quality Improvement databasePerioperative adverse event ratesSimilar long-term outcomesPropensity scoreMinor adverse eventsPrevious cohort studiesSerious adverse eventsSimilar perioperative outcomesAdverse event ratesIndividual adverse eventsQuality improvement database
2016
Perioperative Outcomes After Cervical Laminoplasty Versus Posterior Decompression and Fusion
Varthi AG, Basques BA, Bohl DD, Golinvaux NS, Grauer JN. Perioperative Outcomes After Cervical Laminoplasty Versus Posterior Decompression and Fusion. Clinical Spine Surgery A Spine Publication 2016, 29: e226-e232. PMID: 25310393, DOI: 10.1097/bsd.0000000000000183.Peer-Reviewed Original ResearchConceptsMultilevel cervical pathologyBaseline patient characteristicsCervical laminoplastyShort-term outcomesPosterior decompressionLaminoplasty patientsFusion patientsCervical decompressionAdverse eventsPatient characteristicsCervical pathologySurgeons National Surgical Quality Improvement Program databaseNational Surgical Quality Improvement Program databasePropensity-adjusted multivariate analysisQuality Improvement Program databaseWorse short-term outcomesCharlson Comorbidity IndexPosterior cervical decompressionRetrospective cohort studyImprovement Program databaseLength of stayBivariate logistic regressionAnesthesiologists (ASA) scoreComorbidity indexPerioperative outcomesVariation in Resource Utilization for Patients With Hip and Pelvic Fractures Despite Equal Medicare Reimbursement
Samuel AM, Webb ML, Lukasiewicz AM, Basques BA, Bohl DD, Varthi AG, Lane JM, Grauer JN. Variation in Resource Utilization for Patients With Hip and Pelvic Fractures Despite Equal Medicare Reimbursement. Clinical Orthopaedics And Related Research® 2016, 474: 1486-1494. PMID: 26913512, PMCID: PMC4868172, DOI: 10.1007/s11999-016-4765-8.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overDiagnosis-Related GroupsFee-for-Service PlansFemaleFracture FixationHealth ResourcesHip FracturesHospital CostsHumansIntensive Care UnitsLength of StayMaleMedicarePatient Care BundlesPelvic BonesProcess Assessment, Health CareRegistriesRespiration, ArtificialRetrospective StudiesTime FactorsTrauma CentersTreatment OutcomeUnited StatesConceptsIntensive care unitDiagnosis-related groupsPelvic fracturesHip fractureInpatient lengthAcetabulum fracturesVentilator timeICU lengthHospital factorsVentilation timePelvis fracturesIntensive care unit stayNational Trauma Data BankTotal inpatient lengthTrue hospital costsMechanical ventilation timeInpatient resource utilizationHigh-energy traumaTrauma Data BankIncidence of fracturesNonoperative fracturesUnit stayTrauma patientsCare unitPelvic traumaSpinal Fracture in Patients With Ankylosing Spondylitis
Lukasiewicz AM, Bohl DD, Varthi AG, Basques BA, Webb ML, Samuel AM, Grauer JN. Spinal Fracture in Patients With Ankylosing Spondylitis. Spine 2016, 41: 191-196. PMID: 26579959, DOI: 10.1097/brs.0000000000001190.Peer-Reviewed Original ResearchConceptsNational Inpatient SampleSpinal fracturesAdverse eventsCervical fracturesSpinal columnHospital adverse eventsMortality of fracturesSmall case seriesSpinal cord injuryAnkylosed spinePatient demographicsRetrospective cohortThoracic fracturesCase seriesHigh morbidityInjury characteristicsInpatient stayMinor traumaCord injuryPatient populationCase reportInpatient SampleBACKGROUND DATAHigh riskPatients
2015
Overall Similar Infection Rates Reported in the Physician-reported Scoliosis Research Society Database and the Chart-abstracted American College of Surgeons National Surgical Quality Improvement Program Database
Webb ML, Lukasiewicz AM, Samuel AM, Bohl DD, Basques BA, Varthi AG, Grauer JN. Overall Similar Infection Rates Reported in the Physician-reported Scoliosis Research Society Database and the Chart-abstracted American College of Surgeons National Surgical Quality Improvement Program Database. Spine 2015, 40: 1431-1435. PMID: 26110664, DOI: 10.1097/brs.0000000000001033.Peer-Reviewed Original ResearchConceptsACS-NSQIP databaseSurgeons National Surgical Quality Improvement Program databaseNational Surgical Quality Improvement Program databaseQuality Improvement Program databaseImprovement Program databaseInfection rateSRS databasePostoperative infectionProgram databaseAmerican CollegeScoliosis Research Society MorbidityAcute postoperative infectionSurgeon-reported dataPostoperative infection rateRetrospective cohort studyNinth Revision codesSimilar infection ratesDegenerative spondylolithesisCohort studyScheuermann's kyphosisSurgical databaseRevision codesSurgical correctionBACKGROUND DATASurgical cases
2014
Complication Rates Following Elective Lumbar Fusion in Patients With Diabetes
Golinvaux NS, Varthi AG, Bohl DD, Basques BA, Grauer JN. Complication Rates Following Elective Lumbar Fusion in Patients With Diabetes. Spine 2014, 39: 1809-1816. PMID: 25010098, DOI: 10.1097/brs.0000000000000506.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedChi-Square DistributionDatabases, FactualDiabetes Mellitus, Type 1Diabetes Mellitus, Type 2Elective Surgical ProceduresFemaleHumansHypoglycemic AgentsInsulinLength of StayLogistic ModelsLumbar VertebraeMaleMiddle AgedMultivariate AnalysisOdds RatioPatient ReadmissionPostoperative ComplicationsRetrospective StudiesRisk FactorsSpinal FusionTime FactorsTreatment OutcomeUnited StatesYoung AdultConceptsInsulin-dependent diabetes mellitusLumbar fusion surgeryDiabetes mellitusPostoperative complicationsFusion surgeryLumbar fusionSurgeons National Surgical Quality Improvement Program databaseNational Surgical Quality Improvement Program databaseElective lumbar fusion surgeryQuality Improvement Program databaseEffects of NIDDMVentilator-assisted respirationWound-related infectionsAdverse postoperative outcomesRetrospective cohort studyImprovement Program databaseUrinary tract infectionDependent diabetes mellitusElective lumbar fusionPreoperative risk stratificationRisk of deathCommon chronic diseasesLength of stayCounseling of patientsUnplanned intubationFactors Predictive of Increased Surgical Drain Output After Anterior Cervical Discectomy and Fusion
Basques BA, Bohl DD, Golinvaux NS, Yacob A, Varthi AG, Grauer JN. Factors Predictive of Increased Surgical Drain Output After Anterior Cervical Discectomy and Fusion. Spine 2014, 39: 728-735. PMID: 24480948, PMCID: PMC3991728, DOI: 10.1097/brs.0000000000000237.Peer-Reviewed Original ResearchConceptsTotal drain outputDrain outputSurgical drain placementSurgical drain outputNeck hematomaDrain placementSurgical drainsRetrospective cohort studyAnterior cervical discectomyHistory of smokingRisk of complicationsPostoperative neck hematomaAge 50 yearsMultivariate logistic regressionSingle academic institutionAverage drain outputElective ACDFCervical discectomyCohort studyConsecutive patientsDrain useIndependent predictorsFactors PredictiveMedical recordsACDF