2017
Access of Patients With Lumbar Disc Herniations to Spine Surgeons
Anandasivam NS, Wiznia DH, Kim CY, Save AV, Grauer JN, Pelker RR. Access of Patients With Lumbar Disc Herniations to Spine Surgeons. Spine 2017, 42: 1179-1183. PMID: 27902558, DOI: 10.1097/brs.0000000000002005.Peer-Reviewed Original ResearchConceptsLumbar disc herniationMedicaid insuranceSpine surgeonsAppointment success rateDisc herniationInsurance typePatient accessPrivate insuranceMedicaid expansionProspective cohort studyDifferent insurance typesSuccess rateAccess of patientsCohort studyAffordable Care ActBACKGROUND DATAPatientsSpine careLumbar discAcceptance of insuranceReferralMedicaid eligibilitySurgeonsMedicaidCare ActThe Influence of Medical Insurance on Patient Access to Orthopaedic Surgery Sports Medicine Appointments Under the Affordable Care Act
Wiznia DH, Nwachuku E, Roth A, Kim CY, Save A, Anandasivam NS, Medvecky M, Pelker R. The Influence of Medical Insurance on Patient Access to Orthopaedic Surgery Sports Medicine Appointments Under the Affordable Care Act. Orthopaedic Journal Of Sports Medicine 2017, 5: 2325967117714140. PMID: 28812034, PMCID: PMC5528187, DOI: 10.1177/2325967117714140.Peer-Reviewed Original ResearchSports medicine specialistsBucket-handle meniscus tearsMedicaid patientsMedicine specialistsPatient accessPrivate insuranceAffordable Care ActMeniscus tearsSpecialty care settingsLack of referralLevel of evidenceCare ActAppointment success rateCohort studyInsurance typeCare settingsKnee arthroscopyPatientsPrivate patientsMeniscus repairMedicaidStudy periodMedicaid reimbursementHealth careMedical insurance
2016
Survey of Patient Insurance Status on Access to Specialty Foot and Ankle Care Under the Affordable Care Act
Kim CY, Wiznia DH, Roth AS, Walls RJ, Pelker RR. Survey of Patient Insurance Status on Access to Specialty Foot and Ankle Care Under the Affordable Care Act. Foot & Ankle International 2016, 37: 776-781. PMID: 27026727, DOI: 10.1177/1071100716642015.Peer-Reviewed Original ResearchConceptsTotal ankle arthroplastyAnkle arthroplastyAnkle surgeonsPrimary care referralsPatient insurance statusAppointment success rateCare referralAffordable Care ActInsurance statusInsurance typePrognostic studiesPatientsAnkle careLevel IIBlueCrossFictitious patientArthroplastyReferralMedicaidReimbursement ratesSurgeonsCare ActSuccess rateMedicareAppointmentsPrimary Care Physician and Patient Perceptions of Reimbursement for Total Knee and Hip Replacement
Wiznia DH, Kim CY, Wang Y, Swami N, Pelker RR. Primary Care Physician and Patient Perceptions of Reimbursement for Total Knee and Hip Replacement. The Journal Of Arthroplasty 2016, 31: 1395-1399. PMID: 27036921, DOI: 10.1016/j.arth.2015.12.052.Peer-Reviewed Original ResearchConceptsTotal knee arthroplastyTotal hip arthroplastyOrthopaedic surgeonsOrthopaedic servicesPrimary care physicians' perceptionsHigher reimbursementPrimary care physiciansPostoperative patientsCare physiciansKnee arthroplastyPatients' perceptionsTotal kneePhysicians' perceptionsHip arthroplastyOrthopedic proceduresHip replacementWeb-based surveyPatientsSurgeonsReimbursement valuesLarger practicesPaper-based surveyFurther studiesSignificant differencesArthroplasty
1997
Rollback in posterior cruciate ligament—retaining total knee arthroplasty A radiographic analysis
Kim H, Pelker R, Gibson D, Irving J, Lynch J. Rollback in posterior cruciate ligament—retaining total knee arthroplasty A radiographic analysis. The Journal Of Arthroplasty 1997, 12: 553-561. PMID: 9268796, DOI: 10.1016/s0883-5403(97)90179-0.Peer-Reviewed Original ResearchConceptsPosterior cruciate ligament-retaining total knee arthroplastyTotal knee arthroplastyPostoperative tibiofemoral anglePreoperative tibiofemoral angleTibiofemoral contact pointTibiofemoral angleKnee arthroplastyTibial trayPosterior tiltInterobserver reliability testDegree of translationRadiographic studiesPosterior translationDegrees flexionRadiographic analysisMean differenceRadiographic measurementsFull extensionArthroplastyTibiaAverage translationSame observerPatients
1991
The Noncemented Porous-Coated Hip Prosthesis
BANDS R, PELKER R, SHINE J, BRADBURN H, MARGOLIS R, LEACH J. The Noncemented Porous-Coated Hip Prosthesis. Clinical Orthopaedics And Related Research® 1991, 269: 209-219. PMID: 1864041, DOI: 10.1097/00003086-199108000-00030.Peer-Reviewed Original ResearchConceptsTotal hip arthroplastyPorous-coated componentsFemoral stemHip arthroplastyMean Harris hip scorePorous-coated femoral stemDistal cortical hypertrophyHarris hip scoreExcellent resultsBipolar acetabular componentMean followPorous-coated femoralHip scoreThigh painRoentgenographic findingsCortical hypertrophyRetrospective studyRoentgenographic changesProximal femurBipolar endoprosthesesEntire groupAcetabular componentPatientsBone bridgingArthroplasty
1986
Indium-111 platelet scintigraphy for the diagnosis of acute venous thrombosis.
Ezekowitz M, Pope C, Sostman H, Smith E, Glickman M, Rapoport S, Sniderman K, Friedlaender G, Pelker R, Taylor F. Indium-111 platelet scintigraphy for the diagnosis of acute venous thrombosis. Circulation 1986, 73: 668-674. PMID: 3948370, DOI: 10.1161/01.cir.73.4.668.Peer-Reviewed Original ResearchConceptsPlatelet scintigraphyContrast venographyGroup IIVenous thrombosisLower limb venous thrombosisGroup IIndium-111 platelet scintigraphyAcute venous thrombosisHigh-risk patientsMajor orthopedic proceduresPositive venogramsIntravenous heparinSymptomatic patientsConsecutive patientsActive thrombosisOrthopedic proceduresSingle injectionScintigraphyVenographyPatientsBlinded observersIndium-111Positive findingsFurther evaluationThrombosis
1983
Biomechanical Properties of Bone Allografts
Pelker R, Friedlaender G, Markham T. Biomechanical Properties of Bone Allografts. Clinical Orthopaedics And Related Research® 1983, 174: 54-57. PMID: 6339144, DOI: 10.1097/00003086-198304000-00009.Peer-Reviewed Original ResearchConceptsOrthopaedic oncology serviceLow-grade tumorsPresence of recurrenceRelationship of complicationsMassachusetts General HospitalAllograft fractureOncology servicesAllograft implantationFunctional statusSkin sloughGeneral HospitalBone allograftIntramedullary rodFunctional restorationPatientsBenign conditionsResectionBone conditionsCadaveric segmentsComplicationsGraftBiomechanical propertiesTumorsMore yearsInfection