2023
Weight loss makes the difference: perioperative outcomes following posterior lumbar fusion in patients with and without weight loss following bariatric surgery
Dhodapkar M, Halperin S, Joo P, Maloy G, Jeong S, Rubio D, Grauer J. Weight loss makes the difference: perioperative outcomes following posterior lumbar fusion in patients with and without weight loss following bariatric surgery. The Spine Journal 2023, 23: 1506-1511. PMID: 37302416, DOI: 10.1016/j.spinee.2023.06.002.Peer-Reviewed Original ResearchConceptsHistory of BSPosterior lumbar fusionElixhauser Comorbidity IndexMorbid obesityBariatric surgeryAdverse eventsWeight lossReadmission ratesLumbar fusionSingle-level posterior lumbar fusionImpact of BSRetrospective case-control studyPrior bariatric surgeryMinor adverse eventsLevel posterior lumbar fusionTime of surgeryMultivariable logistic regressionCase-control studyHistory of infectionSignificant weight lossMO categoryMorbidly obesityPLF patientsComorbidity indexPerioperative outcomesAnterior Cervical Discectomy and Fusion Outcomes in Patients With and Without Bariatric Surgery—Weight Loss Does Make a Difference
Joo P, Zhu J, Wilhelm C, Tang K, Day W, Moran J, Grauer J. Anterior Cervical Discectomy and Fusion Outcomes in Patients With and Without Bariatric Surgery—Weight Loss Does Make a Difference. Spine 2023, 48: 400-406. PMID: 36735637, DOI: 10.1097/brs.0000000000004580.Peer-Reviewed Original ResearchConceptsAnterior cervical discectomyBariatric surgeryMorbid obesityAdverse eventsCervical discectomyReoperation rateBS proceduresFive-Year Reoperation RatesRetrospective comparative cohort studyHistory of BSMinor adverse eventsNon-obese patientsAdverse event ratesComparative cohort studyElixhauser Comorbidity IndexKaplan-Meier analysisRisk of complicationsNon-obese controlsLength of stayACDF patientsElective ACDFComorbidity indexFusion patientsPulmonary embolismCohort study
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
2021
Underweight Patients Are the Greatest Risk Body Mass Index Group for 30-Day Perioperative Adverse Events After Total Shoulder Arthroplasty.
Ottesen TD, Hsiang WR, Malpani R, Nicholson AD, Varthi AG, Rubin LE, Grauer JN. Underweight Patients Are the Greatest Risk Body Mass Index Group for 30-Day Perioperative Adverse Events After Total Shoulder Arthroplasty. Journal Of The American Academy Of Orthopaedic Surgeons 2021, 29: e132-e142. PMID: 32568997, DOI: 10.5435/jaaos-d-20-00049.Peer-Reviewed Original ResearchConceptsBody mass indexPerioperative adverse eventsTotal shoulder arthroplastyNormal weight patientsAdverse eventsTSA patientsBMI categoriesUnderweight patientsShoulder arthroplastyNational Surgical Quality Improvement Program databaseElective total shoulder arthroplastyOverweight/obese categoriesRisk-adjusted multivariate regressionsQuality Improvement Program databaseElevated body mass indexBody mass index groupsLower body mass indexPrimary total shoulder arthroplastyNormal BMI patientsComplications of patientsSerious adverse eventsImprovement Program databaseNormal-weight subjectsBMI patientsFragile cohortDiabetes Status Affects Odds of Body Mass Index-dependent Adverse Outcomes After Total Hip Arthroplasty.
Kebaish KJ, Puvanesarajah V, Rao S, Zhang B, Ottesen TD, Grauer JN, Khanuja H. Diabetes Status Affects Odds of Body Mass Index-dependent Adverse Outcomes After Total Hip Arthroplasty. Journal Of The American Academy Of Orthopaedic Surgeons 2021, 29: 71-77. PMID: 32404681, DOI: 10.5435/jaaos-d-20-00028.Peer-Reviewed Original ResearchConceptsBody mass indexSerious adverse eventsTotal hip arthroplastyAdverse eventsAdverse outcomesHip arthroplastyNational Surgical Quality Improvement Program databaseInsulin-dependent diabetes mellitus (IDDM) patientsQuality Improvement Program databaseNormal body mass indexPrimary total hip arthroplastyImprovement Program databaseDiabetes mellitus patientsDependent diabetes mellitusMultivariate logistic regressionPatient's medical historyDiabetes groupPerioperative outcomesPerioperative riskObese patientsDiabetes mellitusMellitus patientsNIDDM patientsBMI cutoffsIncreased odds
2020
Underweight patients are at just as much risk as super morbidly obese patients when undergoing anterior cervical spine surgery
Ottesen TD, Malpani R, Galivanche AR, Zogg CK, Varthi AG, Grauer JN. Underweight patients are at just as much risk as super morbidly obese patients when undergoing anterior cervical spine surgery. The Spine Journal 2020, 20: 1085-1095. PMID: 32194246, PMCID: PMC7380546, DOI: 10.1016/j.spinee.2020.03.007.Peer-Reviewed Original ResearchConceptsAnterior cervical spine surgeryBody mass indexCervical spine surgeryNational Surgical Quality Improvement Program databaseSuper morbidly obese patientsQuality Improvement Program databaseWorld Health Organization categoriesMorbidly obese patientsImprovement Program databaseObese patientsAdverse eventsAdverse outcomesSpine surgeryUnderweight patientsPostoperative infectionProgram databaseSurgeons National Surgical Quality Improvement Program databaseMultivariate analysisAnterior cervical spine proceduresOverweight/obese categoriesThirty-day adverse eventsHigher body mass indexLower body mass indexAdverse outcome categoriesNormal BMI patients
2014
Limitations of administrative databases in spine research: a study in obesity
Golinvaux NS, Bohl DD, Basques BA, Fu MC, Gardner EC, Grauer JN. Limitations of administrative databases in spine research: a study in obesity. The Spine Journal 2014, 14: 2923-2928. PMID: 24780248, DOI: 10.1016/j.spinee.2014.04.025.Peer-Reviewed Original ResearchConceptsICD-9 codesBody mass indexNational inpatient databaseProportion of patientsLarge academic medical centerNinth Revision codesCross-sectional studySurgery researchSpine surgery researchAcademic medical centerOnly comorbidityPediatric patientsMass indexInpatient DatabaseRevision codesDiagnosis codesMedical recordsAdministrative databasesSpine surgeryMedical CenterDatabase studyInternational ClassificationPatientsObesityLarger sample sizeUsing the ACS-NSQIP to Identify Factors Affecting Hospital Length of Stay After Elective Posterior Lumbar Fusion
Basques BA, Fu MC, Buerba RA, Bohl DD, Golinvaux NS, Grauer JN. Using the ACS-NSQIP to Identify Factors Affecting Hospital Length of Stay After Elective Posterior Lumbar Fusion. Spine 2014, 39: 497-502. PMID: 24384669, PMCID: PMC3961012, DOI: 10.1097/brs.0000000000000184.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAgedBlood TransfusionBody Mass IndexChi-Square DistributionComorbidityDecision Support TechniquesElective Surgical ProceduresFemaleHumansLength of StayLinear ModelsLumbar VertebraeMaleMiddle AgedMultivariate AnalysisObesity, MorbidOperative TimePatient SelectionRetrospective StudiesRisk AssessmentRisk FactorsSpinal DiseasesSpinal FusionTime FactorsTreatment OutcomeUnited StatesConceptsElective posterior lumbar fusionPosterior lumbar fusionNational Surgical Quality Improvement Program databaseSurgeons National Surgical Quality Improvement Program databaseQuality Improvement Program databaseImprovement Program databaseLumbar fusionHospital lengthIntraoperative variablesExtended LOSProgram databaseAmerican CollegePosterior lumbar spine fusionPredictors of LOSRetrospective cohort studyBody mass indexLumbar spine fusionCommon surgical procedureImportant clinical variablesInpatient hospital costsLumbar spine pathologyAnesthesiologists classIntraoperative transfusionMorbid obesityCohort study