2019
Preoperative laboratory testing for total hip arthroplasty: Unnecessary tests or a helpful prognosticator
Ondeck NT, Fu MC, McLynn RP, Bovonratwet P, Malpani R, Grauer JN. Preoperative laboratory testing for total hip arthroplasty: Unnecessary tests or a helpful prognosticator. Journal Of Orthopaedic Science 2019, 25: 854-860. PMID: 31668911, DOI: 10.1016/j.jos.2019.09.019.Peer-Reviewed Original ResearchConceptsTotal hip arthroplastyPreoperative laboratory testingBlood urea nitrogenAdverse outcomesCreatinine levelsBUN levelsHip arthroplastySodium levelsNational Surgical Quality Improvement ProgramRoutine preoperative laboratory testingPrimary total hip arthroplastySurgical Quality Improvement ProgramElective arthroplasty proceduresHealth adverse outcomesPatient baseline characteristicsPreoperative creatinine levelPerioperative adverse eventsLower extremity arthroplastyQuality Improvement ProgramLaboratory testingHealth care deliveryHelpful prognosticatorInfectious indicationsPreoperative sodiumAdverse eventsAbnormally High, as Well as Low, Preoperative Platelet Counts Correlate With Adverse Outcomes and Readmissions After Elective Total Knee Arthroplasty
Malpani R, Haynes MS, Clark MG, Galivanche AR, Bovonratwet P, Grauer JN. Abnormally High, as Well as Low, Preoperative Platelet Counts Correlate With Adverse Outcomes and Readmissions After Elective Total Knee Arthroplasty. The Journal Of Arthroplasty 2019, 34: 1670-1676. PMID: 31072745, DOI: 10.1016/j.arth.2019.04.012.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overAnemiaArthroplasty, Replacement, KneeDatabases, FactualDiabetes ComplicationsElective Surgical ProceduresFemaleHumansLength of StayMaleMiddle AgedPatient ReadmissionPlatelet CountPostoperative ComplicationsPostoperative PeriodPreoperative PeriodRetrospective StudiesThrombocytopeniaThrombocytosisTreatment OutcomeUnited StatesYoung AdultConceptsTotal knee arthroplastyElective total knee arthroplastyMinor adverse eventsPreoperative platelet countAbnormal platelet countLow platelet countPlatelet countHigher platelet countsAdverse eventsPostoperative complicationsTKA patientsAdverse outcomesKnee arthroplastyNational Surgical Quality Improvement Program databaseElective primary total knee arthroplastyMultivariate analysisQuality Improvement Program databasePrimary total knee arthroplastyMulticenter patient populationImprovement Program databasePostoperative adverse outcomesPlatelet count thresholdRetrospective comparative studyNormal platelet countLarger patient sample size
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 datasetOutcomesConclusion
2016
Preoperative Nutritional Status as an Adjunct Predictor of Major Postoperative Complications Following Anterior Cervical Discectomy and Fusion
Fu MC, Buerba RA, Grauer JN. Preoperative Nutritional Status as an Adjunct Predictor of Major Postoperative Complications Following Anterior Cervical Discectomy and Fusion. Clinical Spine Surgery A Spine Publication 2016, 29: 167-172. PMID: 25310390, DOI: 10.1097/bsd.0000000000000181.Peer-Reviewed Original ResearchConceptsNational Surgical Quality Improvement ProgramMajor postoperative complicationsPreoperative nutritional statusAnterior cervical discectomySurgical outcomes databaseSerum albumin concentrationPreoperative hypoalbuminemiaPostoperative complicationsNutritional statusAdjunct predictorCervical discectomyACDF casesOutcomes DatabaseAlbumin concentrationAlbumin measurementSurgical Quality Improvement ProgramMultivariable logistic regression modelHigher ASA classPreoperative albumin measurementsHigh-risk patientsPreoperative serum albuminMultiple medical comorbiditiesPreoperative risk assessmentAdjusted odds ratioStrong independent predictor
2014
Administrative Database Concerns
Golinvaux NS, Bohl DD, Basques BA, Grauer JN. Administrative Database Concerns. Spine 2014, 39: 2019-2023. PMID: 25202941, DOI: 10.1097/brs.0000000000000598.Peer-Reviewed Original ResearchConceptsICD-9 codesCross-sectional studyPreoperative anemiaICD-9 codingPreoperative hematocritNationwide Inpatient SampleNinth Revision codesAcademic medical centerNegative predictive valueAdditional comorbiditiesRevision codesInpatient SampleAdministrative databasesSpine surgerySpinal fusionBACKGROUND DATAMedical CenterInternational ClassificationICD-9Normal rangePatientsPredictive valueLarger sample sizeAnemiaNational database