2024
Outcomes following two-level Cervical Disc Arthroplasty Relative to two-level Anterior Cervical Discectomy.
Ratnasamy P, Gouzoulis M, Jabbouri S, Varthi A, Grauer J. Outcomes following two-level Cervical Disc Arthroplasty Relative to two-level Anterior Cervical Discectomy. Spine 2024 PMID: 39190404, DOI: 10.1097/brs.0000000000005131.Peer-Reviewed Original ResearchCervical disc arthroplasty patientsFive-year survivalCervical disc arthroplastyPostoperative adverse eventsSpine reoperationTwo-level cervical disc arthroplastyAdverse eventsACDF patientsPatient ageElixhauser Comorbidity IndexTreatment optionsMultivariate analysisDegenerative cervical spine pathologyTwo-level surgeryCervical spine pathologyTwo-level ACDFAnterior cervical discectomyNovel treatment optionsMinor adverse eventsCervical discectomyNo significant differenceSpine pathologyACDFReoperationComorbidity indexRobotic-Assisted Versus Navigation-Assisted Posterior Lumbar Fusion
Gouzoulis M, Seddio A, Winter A, Jabbouri S, Zhu J, Rubio D, Varthi A, Grauer J. Robotic-Assisted Versus Navigation-Assisted Posterior Lumbar Fusion. Spine 2024, 49: 1483-1487. PMID: 38717329, DOI: 10.1097/brs.0000000000005032.Peer-Reviewed Original ResearchPosterior lumbar fusionLumbar fusionAdverse eventsLevel posterior lumbar fusionsCPT codesKaplan-Meier survival analysisRate of reoperationNavigation-assisted surgeryRobotic-assisted casesNavigation-assistedMinor adverse eventsPerioperative adverse eventsMultivariate logistic regressionICD-10 procedure codeRobotic cohortRobotic assistanceSpinal navigationReoperation rateAnterior fusionElixhauser Comorbidity IndexPearlDiver databaseNo significant differenceIncremental advantageAdverse outcomesComorbidity index
2023
Lumbar Laminotomy: Variables Affecting 90-day Overall Reimbursement
Halperin S, Dhodapkar M, Gouzoulis M, Laurans M, Varthi A, Grauer J. Lumbar Laminotomy: Variables Affecting 90-day Overall Reimbursement. Journal Of The American Academy Of Orthopaedic Surgeons 2023, 32: 265-270. PMID: 38064482, DOI: 10.5435/jaaos-d-23-00365.Peer-Reviewed Original ResearchPostoperative adverse eventsAdverse eventsInsurance typePostoperative emergency department visitsPostoperative emergency departmentEmergency department visitsElixhauser Comorbidity IndexMultivariable linear regression modelsMultivariable linear regressionHealthcare deliveryIndications of traumaPostoperative readmissionsComorbidity indexInfectious diagnosisConservative treatmentPerioperative dataDepartment visitsEmergency departmentOutpatient surgeryLarge cohortSpinal proceduresExclusion criteriaDiskectomyOverall reimbursementCommon procedure
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 outcomes