2021
Current concepts of spondylosis and posterior spinal motion preservation for radiologists
Porrino J, Rao A, Moran J, Wang A, Grauer J, Haims A, Kani K. Current concepts of spondylosis and posterior spinal motion preservation for radiologists. Skeletal Radiology 2021, 50: 2169-2184. PMID: 34131792, DOI: 10.1007/s00256-021-03840-6.Peer-Reviewed Original ResearchMeSH KeywordsBiomechanical PhenomenaCervical VertebraeHumansLumbar VertebraeRadiologistsRange of Motion, ArticularSpinal FusionSpondylosis
2015
Undertapping of Lumbar Pedicle Screws Can Result in Tapping With a Pitch That Differs From That of the Screw, Which Decreases Screw Pullout Force
Bohl DD, Basques BA, Golinvaux NS, Toy JO, Matheis EA, Bucklen BS, Grauer JN. Undertapping of Lumbar Pedicle Screws Can Result in Tapping With a Pitch That Differs From That of the Screw, Which Decreases Screw Pullout Force. Spine 2015, 40: e729-e734. PMID: 25856261, DOI: 10.1097/brs.0000000000000922.Peer-Reviewed Original Research
2011
The Effects of Three Different Types of Orthoses on the Range of Motion of the Lumbar Spine During 15 Activities of Daily Living
Jegede KA, Miller CP, Bible JE, Whang PG, Grauer JN. The Effects of Three Different Types of Orthoses on the Range of Motion of the Lumbar Spine During 15 Activities of Daily Living. Spine 2011, 36: 2346-2353. PMID: 21358469, DOI: 10.1097/brs.0b013e31820921a5.Peer-Reviewed Original Research
2010
The Effect of Rigid Cervical Collar Height on Full, Active, and Functional Range of Motion During Fifteen Activities of Daily Living
Miller CP, Bible JE, Jegede KA, Whang PG, Grauer JN. The Effect of Rigid Cervical Collar Height on Full, Active, and Functional Range of Motion During Fifteen Activities of Daily Living. Spine 2010, 35: e1546-e1552. PMID: 21116218, DOI: 10.1097/brs.0b013e3181cf6f73.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAdultBiomechanical PhenomenaCervical VertebraeFemaleHead MovementsHumansMaleOrthotic DevicesRange of Motion, ArticularConceptsHard cervical collarFunctional ROMDaily livingCervical collarActive ROMCoronal planeFull active ROMSagittal planeSkin-related issuesDifferent collar heightsCervical ROMHard collarClinical significanceCollar heightBACKGROUND DATAActive rangeNeck extensionClinical settingNeutral positionROM measurementsFunctional rangeCorresponding decreaseFunctional positionBiomechanical experimentsROMSoft and Rigid Collars Provide Similar Restriction in Cervical Range of Motion During Fifteen Activities of Daily Living
Miller CP, Bible JE, Jegede KA, Whang PG, Grauer JN. Soft and Rigid Collars Provide Similar Restriction in Cervical Range of Motion During Fifteen Activities of Daily Living. Spine 2010, 35: 1271-1278. PMID: 20512025, DOI: 10.1097/brs.0b013e3181c0ddad.Peer-Reviewed Original ResearchConceptsSoft collarRigid collarActive ROMCervical spineCervical motionRigid orthosisCervical collarFunctional ROMDaily livingProspective cohort studyPaucity of dataCohort studyCervical rangePostoperative bracingInternal fixationBACKGROUND DATACertain injuriesSurgical proceduresRigid braceFlexion/extensionADLRelative efficacyFunctional tasksCervical devicesROM measurementsNormal Functional Range of Motion of the Lumbar Spine During 15 Activities of Daily Living
Bible JE, Biswas D, Miller CP, Whang PG, Grauer JN. Normal Functional Range of Motion of the Lumbar Spine During 15 Activities of Daily Living. Clinical Spine Surgery A Spine Publication 2010, 23: 106-112. PMID: 20065869, DOI: 10.1097/bsd.0b013e3181981823.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAdultBiomechanical PhenomenaElectrodiagnosisFemaleHumansIntervertebral DiscLumbar VertebraeMaleMiddle AgedMovementOutcome Assessment, Health CareProspective StudiesRange of Motion, ArticularReference ValuesTask Performance and AnalysisYoung AdultZygapophyseal JointConceptsFull active ROMLumbar spineAsymptomatic subjectsActive ROMFunctional ROMDaily livingFlexion/extensionProspective clinical studyLateral bending radiographsDynamic flexion/extensionNormal functional rangeIntraclass correlation coefficientLumbar ROMPreoperative impairmentPostsurgical outcomesClinical studiesBACKGROUND DATALumbar rangeLumbar motionSpinal ROMConsecutive daysADLRadiographic measurementsSpineROM valuesNormal Functional Range of Motion of the Cervical Spine During 15 Activities of Daily Living
Bible JE, Biswas D, Miller CP, Whang PG, Grauer JN. Normal Functional Range of Motion of the Cervical Spine During 15 Activities of Daily Living. Clinical Spine Surgery A Spine Publication 2010, 23: 15-21. PMID: 20051924, DOI: 10.1097/bsd.0b013e3181981632.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAdultAgedAnthropometryArthrographyArthrometry, ArticularBiomechanical PhenomenaCervical VertebraeCineradiographyFemaleHead MovementsHumansIntervertebral DiscMaleMiddle AgedMovementNeck MusclesProspective StudiesRange of Motion, ArticularReference ValuesYoung AdultZygapophyseal JointConceptsFull active ROMAsymptomatic subjectsCervical spineCervical ROMActive ROMFunctional ROMDaily livingFlexion/extensionProspective clinical studyLateral bending radiographsNormal cervical rangeDynamic flexion/extensionNormal functional rangeIntraclass correlation coefficientPreoperative impairmentCervical rangePostsurgical outcomesCervical motionClinical studiesBACKGROUND DATASpinal ROMConsecutive daysRadiographic measurementsADLGreater ROM
2006
Back pain in athletes.
Lawrence JP, Greene HS, Grauer JN. Back pain in athletes. Journal Of The American Academy Of Orthopaedic Surgeons 2006, 14: 726-35. PMID: 17148620, DOI: 10.5435/00124635-200612000-00004.Peer-Reviewed Original ResearchConceptsBack painSelf-limiting symptomsChronic back painTreatment of athletesDegenerative disc diseaseHigh incidence rateSpecific spinal pathologyRecurrent symptomsSymptomatic improvementTreatment algorithmIdentifiable pathologyPhysical examinationThorough historyRisk factorsDisc diseaseImpact sportsIncidence rateLumbar injuriesClinical challengeLong-term consequencesLumbar spineAthletic activitySpinal pathologyRecreational athletesPertinent imagingBiomechanics of two-level Charité artificial disc placement in comparison to fusion plus single-level disc placement combination
Grauer JN, Biyani A, Faizan A, Kiapour A, Sairyo K, Ivanov A, Ebraheim NA, Patel TCh, Goel VK. Biomechanics of two-level Charité artificial disc placement in comparison to fusion plus single-level disc placement combination. The Spine Journal 2006, 6: 659-666. PMID: 17088196, DOI: 10.1016/j.spinee.2006.03.011.Peer-Reviewed Original ResearchMeSH KeywordsBiomechanical PhenomenaFinite Element AnalysisHumansIntervertebral DiscLumbar VertebraeModels, NeurologicalRange of Motion, ArticularSpinal FusionSubaxial cervical spine trauma.
Kwon BK, Vaccaro AR, Grauer JN, Fisher CG, Dvorak MF. Subaxial cervical spine trauma. Journal Of The American Academy Of Orthopaedic Surgeons 2006, 14: 78-89. PMID: 16467183, DOI: 10.5435/00124635-200602000-00003.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsSubaxial cervical spine injuriesCervical spine injurySpinal cord injurySpine injuriesCord injuryAcute spinal cord injurySevere spinal cord injuryCertain injury patternsAdministration of methylprednisoloneSpinous process fractureSubaxial cervical injuriesAccurate clinical historyCareful physical examinationNeurologic statusDefinitive managementNonsurgical managementPatient factorsCervical injuryClosed reductionNeurologic impairmentProcess fracturesEmergent managementInjury patternsPhysical examinationRadiographic evaluation
2005
Effects of Charité Artificial Disc on the Implanted and Adjacent Spinal Segments Mechanics Using a Hybrid Testing Protocol
Goel VK, Grauer JN, Patel TCh, Biyani A, Sairyo K, Vishnubhotla S, Matyas A, Cowgill I, Shaw M, Long R, Dick D, Panjabi MM, Serhan H. Effects of Charité Artificial Disc on the Implanted and Adjacent Spinal Segments Mechanics Using a Hybrid Testing Protocol. Spine 2005, 30: 2755-2764. PMID: 16371899, DOI: 10.1097/01.brs.0000195897.17277.67.Peer-Reviewed Original ResearchMeSH KeywordsBiomechanical PhenomenaHumansImage Processing, Computer-AssistedImplants, ExperimentalIntervertebral DiscLumbar VertebraeModels, BiologicalWeight-BearingConceptsFinite element modelHybrid testing protocolFacet loadsElement modelPure momentsFinite element model validationLoad control modeLoad-controlled experimentsIntact caseArtificial disc designsL3-S1 segmentsIntradiscal pressure changesL3-L4 segmentLoad controlAxial compressionDisk designControl modeShear stressLoad sharingArtificial discSuch implantsFacet loadingCadaveric testingSegment mechanicsLoad
2004
Material considerations for intervertebral disc replacement implants
Taksali S, Grauer JN, Vaccaro AR. Material considerations for intervertebral disc replacement implants. The Spine Journal 2004, 4: s231-s238. PMID: 15541671, DOI: 10.1016/j.spinee.2004.07.012.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsCobalt-chrome alloyDisc replacement implantsTitanium alloyStainless steelMaterial propertiesImplant materialsRisk of wearBearing surfacesSuch materialsMaterial considerationsReplacement implantsAlloyMaterialsImplantsSteelCeramicsWearBiomaterialsPolyurethaneTotal disc arthroplastyPolyethyleneArthroplasty implantsInterfaceJoint replacementSurface
2001
Flexibility Analysis of Posterolateral Fusions in a New Zealand White Rabbit Model
Erulkar J, Grauer J, Patel T, Panjabi M. Flexibility Analysis of Posterolateral Fusions in a New Zealand White Rabbit Model. Spine 2001, 26: 1125-1130. PMID: 11413423, DOI: 10.1097/00007632-200105150-00006.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiomechanical PhenomenaMotionPostoperative PeriodRabbitsRadiographyRange of Motion, ArticularSpinal FusionSpineTime FactorsConceptsPosterolateral fusionRabbit modelAutogenous iliac crest bone graftIliac crest bone graftTime pointsNew Zealand white rabbitsPosterolateral lumbar fusionAdult New Zealand white rabbitsCrest bone graftNew Zealand white rabbit modelZealand white rabbitsHuman cadaveric studyPosterolateral spinal fusionWhite rabbit modelVivo rabbit modelIntertransverse process fusionLumbar fusionClinical studiesBACKGROUND DATASpinal fusionAnimal studiesCadaveric studyBone graftWhite rabbitsManual palpationArthroscopic Reduction and Percutaneous Fixation of Scaphoid Fractures With a Novel Dorsal Technique
Slade J, Grauer J, Mahoney J. Arthroscopic Reduction and Percutaneous Fixation of Scaphoid Fractures With a Novel Dorsal Technique. Orthopedic Clinics Of North America 2001, 32: 247-261. PMID: 11331539, DOI: 10.1016/s0030-5898(05)70247-9.Peer-Reviewed Original Research
2000
Biomechanical evaluation of the New Zealand white rabbit lumbar spine: a physiologic characterization
Grauer JN, Erulkar J, Patel T, Panjabi M. Biomechanical evaluation of the New Zealand white rabbit lumbar spine: a physiologic characterization. European Spine Journal 2000, 9: 250-255. PMID: 10905445, PMCID: PMC3611391, DOI: 10.1007/s005860000141.Peer-Reviewed Original Research
1998
Biomechanics of whiplash injury
Panjabi MM, Cholewicki J, Nibu K, Grauer JN, Babat LB, Dvorak J, Bär HF. Biomechanics of whiplash injury. Die Orthopädie 1998, 27: 813-819. PMID: 9894235, DOI: 10.1007/pl00003468.Peer-Reviewed Original ResearchConceptsCervical spineHuman cadaveric specimensVertebral arteryWhiplash injuryWhiplash traumaInjury mechanismCadaveric specimensHyper-extension injuryC6-C7 levelEffective injury preventionLower cervical spineUnderlying injury mechanismClinical symptomsTrauma CTVertebral alignmentInjury preventionMRI scansInjuryWhiplashCapsular ligamentsFunctional radiographsSpineTraumaVulnerable phaseArteryHead kinematics during in vitro whiplash simulation
Cholewicki J, Panjabi M, Nibu K, Babat L, Grauer J, Dvorak J. Head kinematics during in vitro whiplash simulation. Accident Analysis & Prevention 1998, 30: 469-479. PMID: 9666243, DOI: 10.1016/s0001-4575(97)00103-6.Peer-Reviewed Original ResearchMeSH KeywordsAccidents, TrafficBiomechanical PhenomenaCadaverHeadHumansTime FactorsWhiplash InjuriesConceptsWhiplash traumaPotential neck injurySled accelerationMaximum head rotationHead kinematicsPossible injury mechanismsCervical spineInjury mechanismNeck injuriesHead angular displacementHuman cervical spineHead extensionHead kinematic responsesTraumaTrauma classesWhiplash simulationHead rotationWhiplashLate phaseSurrogate headCapsular Ligament Stretches During In Vitro Whiplash Simulations
Panjabi M, Cholewicki J, Nibu K, Grauer J, Vahldiek M. Capsular Ligament Stretches During In Vitro Whiplash Simulations. Clinical Spine Surgery A Spine Publication 1998, 11: 227-232. PMID: 9657548, DOI: 10.1097/00002517-199806000-00009.Peer-Reviewed Original Research
1997
Whiplash Produces an S-Shaped Curvature of the Neck With Hyperextension at Lower Levels
Grauer J, Panjabi M, Cholewicki J, Nibu K, Dvorak J. Whiplash Produces an S-Shaped Curvature of the Neck With Hyperextension at Lower Levels. Spine 1997, 22: 2489-2494. PMID: 9383854, DOI: 10.1097/00007632-199711010-00005.Peer-Reviewed Original ResearchMeSH KeywordsBiomechanical PhenomenaCadaverCervical VertebraeHumansMotion PicturesRotationWhiplash InjuriesConceptsWhiplash traumaCervical levelOptotrak motion analysis systemCervical spine levelsLower cervical levelsCadaveric cervical spine specimensUpper cervical levelEntire cervical spineHuman cadaveric cervical spine specimensTrauma classesFull neck extensionCervical spine specimensIntervertebral rotationInjury stageMotion analysis systemC7-T1Cervical spineSuch injuriesBACKGROUND DATASpine levelNeck extensionC6-C7TraumaLow levelsInjuryDynamic elongation of the vertebral artery during an in vitro whiplash simulation
Nibu K, Cholewicki J, Panjabi MM, Babat LB, Grauer JN, Kothe R, Dvorak J. Dynamic elongation of the vertebral artery during an in vitro whiplash simulation. European Spine Journal 1997, 6: 286-289. PMID: 9294757, PMCID: PMC3454651, DOI: 10.1007/bf01322455.Peer-Reviewed Original Research