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
Long-term Corticosteroid Use Independently Correlates With Complications After Posterior Lumbar Spine Surgery.
Kebaish KJ, Galivanche AR, Varthi AG, Ottesen TD, Rubin LE, Grauer JN. Long-term Corticosteroid Use Independently Correlates With Complications After Posterior Lumbar Spine Surgery. Orthopedics 2021, 44: 172-179. PMID: 34039214, DOI: 10.3928/01477447-20210416-01.Peer-Reviewed Original ResearchConceptsLong-term corticosteroid usePosterior lumbar spine surgeryPosterior lumbar surgeryLumbar spine surgeryPerioperative adverse outcomesCorticosteroid useAdverse eventsLumbar surgerySpine surgeryPropensity matchingAdverse outcomesNational Surgical Quality Improvement Program databaseQuality Improvement Program databaseMinor adverse eventsEffect of immunosuppressionImprovement Program databaseLong-term corticosteroidsSerious adverse eventsBody mass indexMultiple surgical specialtiesAnesthesiologists classComparable patientsPerioperative outcomesSurgical factorsMore patientsUnderweight 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
2018
Predicting Adverse Outcomes After Total Hip Arthroplasty: A Comparison of Demographics, the American Society of Anesthesiologists class, the Modified Charlson Comorbidity Index, and the Modified Frailty Index.
Ondeck NT, Bohl DD, Bovonratwet P, Anandasivam NS, Cui JJ, McLynn RP, Grauer JN. Predicting Adverse Outcomes After Total Hip Arthroplasty: A Comparison of Demographics, the American Society of Anesthesiologists class, the Modified Charlson Comorbidity Index, and the Modified Frailty Index. Journal Of The American Academy Of Orthopaedic Surgeons 2018, 26: 735-743. PMID: 30130353, DOI: 10.5435/jaaos-d-17-00009.Peer-Reviewed Original ResearchConceptsCharlson Comorbidity IndexTotal hip arthroplastyComorbidity indexAdverse outcomesAdverse eventsFrailty indexAnesthesiologists classTHA patientsHip arthroplastyModified Charlson Comorbidity IndexGeneral health complicationsModified Frailty IndexPerioperative adverse outcomesMinor adverse eventsExtended hospital staySevere adverse eventsHigh-level careComparison of demographicsAmerican SocietyDiscriminative abilityPatients ASAHospital stayPerioperative outcomesGreater discriminative abilityHealth complications
2017
Treatments of Missing Values in Large National Data Affect Conclusions: The Impact of Multiple Imputation on Arthroplasty Research
Ondeck NT, Fu MC, Skrip LA, McLynn RP, Su EP, Grauer JN. Treatments of Missing Values in Large National Data Affect Conclusions: The Impact of Multiple Imputation on Arthroplasty Research. The Journal Of Arthroplasty 2017, 33: 661-667. PMID: 29153865, DOI: 10.1016/j.arth.2017.10.034.Peer-Reviewed Original ResearchConceptsUnicompartmental knee arthroplastyPreoperative albuminAdverse outcomesKnee arthroplastyNational Surgical Quality Improvement ProgramComplete case analysisHematocrit valuesSurgical Quality Improvement ProgramDemographics of patientsPreoperative laboratory valuesMultiple imputationQuality Improvement ProgramArthroplasty researchSelection biasHealthy patientsLaboratory valuesPotential selection biasPatientsJoint surgeonsComplete dataArthroplastyOnly caseNational datasetOutcomesConclusionDoes Preoperative Pneumonia Affect Complications of Geriatric Hip Fracture Surgery?
Patterson JT, Bohl DD, Basques BA, Arzeno AH, Grauer JN. Does Preoperative Pneumonia Affect Complications of Geriatric Hip Fracture Surgery? The American Journal Of Orthopedics 2017, 46: e177-e185. PMID: 28666049.Peer-Reviewed Original ResearchConceptsHip fracture repairHip fracture patientsGeriatric hip fracture patientsHip fracture surgeryPreoperative pneumoniaFracture patientsAdverse eventsFracture repairFracture surgeryAdverse outcomesNational Surgical Quality Improvement Program databaseEarly hip fracture surgeryGeriatric hip fracture surgeryQuality Improvement Program databaseChronic obstructive pulmonary diseaseUnderweight body mass indexSerious adverse eventsImprovement Program databaseObstructive pulmonary diseaseTime of surgeryBody mass indexPreoperative anemiaDelaying surgeryRetrospective cohortHip fracture
2014
Patient Characteristics Associated With Increased Postoperative Length of Stay and Readmission After Elective Laminectomy for Lumbar Spinal Stenosis
Basques BA, Varthi AG, Golinvaux NS, Bohl DD, Grauer JN. Patient Characteristics Associated With Increased Postoperative Length of Stay and Readmission After Elective Laminectomy for Lumbar Spinal Stenosis. Spine 2014, 39: 833-840. PMID: 24525996, PMCID: PMC4006290, DOI: 10.1097/brs.0000000000000276.Peer-Reviewed Original ResearchConceptsLumbar spinal stenosisAnesthesiologists class 3Independent risk factorBody mass indexSpinal stenosisRisk factorsElective laminectomyPostoperative lengthPatient characteristicsReadmission analysisMass indexAmerican CollegeNational Surgical Quality Improvement Program databaseSurgeons National Surgical Quality Improvement Program databaseSurgeons National Surgical Quality Improvement ProgramNational Surgical Quality Improvement ProgramSurgical site-related infectionsQuality Improvement Program databaseSurgical Quality Improvement ProgramAverage postoperative LOSImprovement Program databaseAmerican SocietyQuality Improvement ProgramClass 3Preoperative hematocritUsing 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
2013
Anterior and posterior cervical fusion in patients with high body mass index are not associated with greater complications
Buerba RA, Fu MC, Grauer JN. Anterior and posterior cervical fusion in patients with high body mass index are not associated with greater complications. The Spine Journal 2013, 14: 1643-1653. PMID: 24388595, DOI: 10.1016/j.spinee.2013.09.054.Peer-Reviewed Original ResearchConceptsBody mass indexPosterior cervical fusionHigher body mass indexEffect of obesityCervical fusionDeep vein thrombosisComplication rateMass indexPosterior fusionUnivariate analysisBasis of BMIExact testSurgeons National Surgical Quality Improvement ProgramMultivariate analysisNational Surgical Quality Improvement ProgramObese class III patientsSurgical Quality Improvement ProgramTotal operating room timeACS-NSQIP databaseCurrent Procedural Terminology codesRetrospective cohort analysisCervical fusion surgeryPrimary outcome measureSpinal fusion outcomesLength of stay