LSRS9thAnnualMeeting–PreliminaryProgramApril14-15,2016SofitelChicagoWaterTower,Chicago,IllinoisPresident:PaulAAnderson,MDProgramChairs:RonaldLehman,MDandJonathanGrauer,MDLocalHosts:ThomasZdeblick,MDandAlexGhanayem,MD_____________________________________________________________________________ContinuingMedicalEducationCreditThis activity has been planned and implemented in accordance with the accreditation requirements and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint providership of the American Academy of Orthopaedic Surgeons and Lumbar Spine Research Society. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians. The American Academy of Orthopaedic Surgeons designates this live activity for a maximum of 12.5 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity. CME’sforNeurosurgeonsTheAANSmanuallytrackscreditsearnedfromneurosurgeryCategory1AMA/PRAactivitiesnotsponsoredorjoint-sponsoredbytheAANS.Toaddthesecreditstoyourfile,pleaseforwardacopyofyourcertificate(s)ofattendancetotheAANSforprocessing.

April14,2016-Thursday7:00-7:10am WelcomeandOpeningComments

RonaldLehman,MDandJonathanGrauer,MD

Session#1 NonsurgicalTreatmentsModerators: MichaelGerling,MDandIraGoldstein,MD(7:10-7:45)7:10-7:15Paper#1 How Effective is Physical Therapy for Low Back Pain? AMultivariate Analysis of 4597

Patients.AnanthEleswarapu,M.D.;SrikanthDivi,M.D.;DouglasDirschl,M.D.;JamesMok,M.D.;ChristopherStout,Ph.D.;MichaelLee,M.D.

7:16-7:21Paper#2 Isthereadabilityofspine-relatedpatienteducationmaterialimproving?Anassessment

ofsubspecialtywebsites AdamEltorai,BA;MarkPalumbo,MD;AlanDaniels,MD

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7:22-7:27Paper#3 Cost-EffectivenessofLumbarEpiduralSteroidInjections

MarcoSwanson,B.S.;VikramMehta,M.P.H.;MatthewAlvin,M.D.;HeatherFuhrman,B.S.;DanielLubelski,M.D.;EdwardBenzel,M.D.;ThomasMroz,M.D.

7:28-7:33Paper#4 IsThereAnAssociationofEpiduralCorticosteroidInjectionwithPostoperativeSurgicalSiteInfectionafterSurgeryforLumbarDegenerativeSpineDisease?JenisLouis,MD;StefanHartveldt,BSc,BHS;SteinJanssen,MD;KirkhamWood,MD;ThomasCha,MD,MBA;JosephSchwab,MD,MS

7:34-7:44 DISCUSSION

Session#2 PatientOutcomesModerators: JonathanSembrano,MDandBradSegebarth,MD (7:45-8:19)7:45-7:51Paper#5 ValidationofPatientReportedOutcomesMeasurementInformationSystem(PROMIS)

inLumbarStenosisAlpeshPatel,MD,FACS;Shah-NawazDodwad,MD;SurabhiBhatt,BS;JasonSavage,MD;WellingtonHsu,MD;NanRothrock,PhD

ValidationofPatientReportedOutcomesMeasurementInformationSystem(PROMIS)inLumbarDiscHerniationAlpeshPatel,MD,FACS;SurabhiBhatt,BS;JasonSavage,MD;WellingtonHsu,MD;NanRothrock,PhD

7:52-7:57Paper#6 SpineSCOAPat3Years:AddingValueinSpineSurgerythroughaSurgeon-ledQI

Initiative PaulAAnderson,MD;NealShonnard,MD;JensChapman,MD;AmyCizik,PhD;Carlo

Bellabarba,MD;RodOskouian,MD;RajivSethi,MD;ChristophHofsetter,MD;SamuelBederman,MD

7:58-8:03Paper#7 DoLumbarDecompressionandFusionPatientsRecallTheirPreoperativeStatus?Recall

BiasinPatient-ReportedOutcomesIlyasAleem,MD,MSc,FRCSC;JonathanDuncan,MD;AminMohamedAhmed,MD;JasonEck,MD;RheeJohn,MD;MichelleClarke,MD;BradfordCurrier,M.D.;AhmadNassr,MD

8:04-8:09Paper#8 PatientSatisfactionIsNotAssociatedwithPainMedicationConsumptionin

PostoperativeSpineSurgeryPatientsintheInpatientSettingMirandaBice,MD;AmirAbtahi,MD;DaneBarton,MS;AngelaPresson,PhD;QianDing,PhD;BrandonLawrence,MD;DarrelBrodke,MD;W.RyanSpiker,MD

8:10-8:19AM DISCUSSION

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Session#3 Complications-1Moderators: RobertHeary,MDandScottDaffner,MD(8:20-8:49)8:20-8:25Paper#9 EffectsofIntraoperativeAnestheticMedicationsonPostoperativeUrinaryRetention

afterSingleLevelLumbarFusionDustinMassel,BS;BenjaminMayo,BA;PhilipLouie,MD;DanielBohl,MD,MPH;StephanieIantorno,BS;JunyoungAhn,BS;EhsanTabaraee,MD;KernSingh,MD

8:26-8:31Paper#10 ASAClassasanIndependentRiskFactorforComplicationsAfterAdultSpinalDeformity

SurgerySulaimanSomani,BS;JoungHeonKim,BS;JohnDiCapua,MHS,BS;ParthKothari,BS;NathanLee,BS;SamuelCho,MD

8:32-8:37Paper#11 EffectofSurgicalSetting(TertiaryversusCommunityHospitals)onHospitalReported

OutcomesforDegenerativeElectiveLumbarSpinalProceduresNeilSardesai,MD;EhsanJazini,MD;TristanWeir,BS;EugeneKoh,MD,PhD;KelleyBanagan,MD;DanielGelb,MD;StevenLudwig,MD

8:38-8:49AM DISCUSSION

SYMPOSIUM#1 MyWorstComplicationModerators: PaulArnold,MDandTomZdeblick,MDPanel: LouisJenis,MD;JasonSavage,MD;DouglasOrndorffMD (8:50-9:35)8:50 Introduction:HowIhandledit,howIcouldhavepreventedit,andhowithaschanged

thewayIpractice.8:50-8:58 CasePresentation-Infection:lumbardiscitiswithvertebralInvolvement–anterior

debridementgonebad PanelDiscussion 8:58-9:06 CasePresentation–Neurologicdeficit:caseofduraltear,repaired,durasealed;

subsequentneurologicdeficitfromepiduralcompression PanelDiscussion

9:06-9:14 CasePresentation–Majorvascularinjury:MISLLIFwithvascularinjury–preventionandtreatment

PanelDiscussion

9:14-9:22 CasePresentation–Alignment:AttemptedShortSegmentfixation/TLIFforlumbarstenosiswithscoliosis–rapiddecompression

PanelDiscussion

9:22-9:35 CasePresentation–L5S1isthmicspondytreatedwithTLIFx2withoutsolidfusion.Whatnow?

PanelDiscussion

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9:35-9:55 Break

Session#4 RapidFire-PointPresentations-1Moderators: RonLehman,MDandJonathanGrauer,MD(9:55-10:45)9:55-9:57RF1 FrailtyisPredictiveofAdversePostoperativeEventsinPatientsUndergoingLumbar

Fusion DanteLeven,DO;SamuelCho,MD;JohnDiCapua,MHS,BS9:58-10:00RF2 TheEffectofCoagulopathiesonPerioperativeComplicationsandClinicalOutcomesin

PatientsTreatedwithPosteriorLumbarFusionVarunPuvanesarajah,BS;AmitJain,MD;AdamShimer,MD;FrancisShen,MD;HamidHassanzadeh,MD

10:01-10:03RF3 NationalTrendsforPrimaryandRevisionLumbarDiscArthroplastyThroughoutthe

UnitedStatesfrom2005-2013ComronSaifi,MD;AlexHa,MD;AlejandroCazzulino,BA;LawrenceLenke,MD;RonaldLehman,MD

10:04-10:06RF4 NationalTrendsforPrimaryandRevisionAnteriorLumbarInterbodyFusionThroughout

theUnitedStatesfrom2004-2013ComronSaifi,MD;AlexHa,MD;AlejandroCazzulino,BA;LawrenceLenke,MD;RonaldLehman,MD

10:07-10:09RF5 MissingDataMayInvalidateSpineDatabaseStudies

BryceBasques,MD;AndreSamuel,BBA;AdamLukasiewicz,MSc;MatthewWebb,AB;DanielBohl,MD,MPH;JunyoungAhn,BS;KernSingh,MD;JonathanGrauer,MD

10:10–10:20AM DISCUSSION10:20-10:22RF6 TheClinicalSpectrumofPROMISPhysicalFunctionScoresOverTimeinPatientswith

OperativeLumbarPathology StephenPehler,MD;BrandonLawrence,MD;W.RyanSpiker,MD;YueZhang,PhD;

DarrelBrodke,MD10:23-10:25RF7 TheEffectofBoneMineralDensityonProximalJunctionalFailureinThoraco-Lumbar

Fusion TarushRustagi,MD;RichardTallarico,MD;NikhilThakur,MD;MikeSun,MD;Ian

Madom,MD;HenakuYirenkyi,MD;WilliamLavelle,MD10:26-10:28RF8 DiabetesMellitusasaPredictorforAdverseOutcomesinAdultSpinalDeformityCases

JohnDiCapua,MHS,BS;SulaimanSomani,BS;JoungHeonKim,BS;NathanLee,BS;ParthKothari,BS;SamuelCho,MD

10:29-10:31RF9 TranscranialMotor-EvokedPotentialsforPredictionofPostoperativeNeurologicDeficit

FollowingSurgeryforThoracolumbarScoliosis SamMiller,BS;SeanDonegan,BA;AdamEltorai,BA;NieshaVoigt,BA;JasonMachan,

PhD;AlanDaniels,MD;TeenaShetty,MD

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10:32-10:33RF10 MRIforFlexibleSagittalImbalanceAkshaySharma,BA;SinaPourtaheri,MD;JasonSavage,M.D.;IainKalfas,MD;EdwardBenzel,M.D.;ThomasMroz,M.D.;MichaelSteinmetz,MD

10:34-10:44 DISCUSSION

Session#5 PatientDischarges/ReadmissionsModerators: RajRao,MDandCharlaFischer,MD(10:45–11:25)10:45-10:50Paper#12 PredictingDischargeDispositionAfterLumbarFusion

AshleyRogerson,MD;JenisLouis,MD;AndrewMason,BS,MS;JonnaCapecci,PT;DavidTybor,PhD,MPH

10:51-10:56Paper#13 PredictorsofDischargetoaNon-HomeFacilityinPatientsUndergoingLumbarDecompressionwithoutFusionforDegenerativeSpineDisease:AnACS-NSQIPStudyMeghanMurphy,M.D.;PatrickMaloney,M.D.;BrandonMcCutcheon,M.D.;PanagiotisKerezoudis,M.D.;DanielUbl,B.A.;CynthiaCrowson,M.S.;MohamadBydon,M.D.

10:57-11:02Paper#14 ReadmissionRates,Reasons,andRiskFactorsinElderlyPatientsTreatedwithLumbarFusionforDegenerativePathology

VarunPuvanesarajah,BS;HamidHassanzadeh,MD;AdamShimer,MD;FrancisShen,MD;AnujSingla,MD

11:03-11:08Paper#15 SpineSurgicalInvasivenessIndexisaPredictorforReadmission

AshleyRogerson,MD;JenisLouis,MD;AndrewMason,BS,MS;JonnaCapecci,PT11:09-11:20 DISCUSSION

Awards,Grants,andPresidentialAddressModerators: DarrelBrodke,MDandAlexGhanayem,MD(11:20-12:10)11:20–11:25 AwardAnnouncements AOSNAResident/FellowResearchAwardWinners 2015PASEAwardsforBestClinicalandBestBasicSciencePapers 11:25-11:35 2015ResearchGrantFindings–BrandonLawrence,MD

“Definingtheosteogenicpotentialofmesenchymalstemcellsandtheirprogenitorsduringspinaldecompressionandposterolaterallumbarfusion”

11:35–11:40 2014ResearchGrantReportandUpdate–DanielleChun,BA“3dprintedhyperelastichydroxyapatite-DBMcompositescaffoldsforspinefusion”

11:40-11:50 DISCUSSION11:50-11:55 Announcementofthe2016LSRSResearchGrantAwardWinner

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11:55-12:10 PRESIDENTIALADDRESS–PaulA.Anderson,MD IntroductionbyJeffreyFischgrund,MD

12:10-1:10 LUNCH/BUSINESSMEETING

Session#6 Complications-2Moderators: ChristopherO’Boynick,MDandBruceDarden,MD(1:15–1:43)1:10-1:15Paper#16 TheEffectofVancomycinPowderontheRatesofInfectionandPseudarthrosisin

LumbarSpineSurgery;ARetrospectiveAnalysisof532PatientsSukantaMaitra,MD;JordanKump,BS;YueZhang,PhD;W.RyanSpiker,MD;BrandonLawrence,MD;DarrelBrodke,MD

1:16-1:21Paper#17 OccultInfectionDemonstratedinPatientsWhoHaveUndergoneSpinalSurgery

TuckerCallanan,BS;DarrenLebl,MD;AndrewSama,MD;FedericoGirardi,MD;SamMiller,BS;FrankCammisa,MD;CelesteAbjornson,PhD

1:22-1:27Paper#18 PerioperativeComplicationsDoNotAffectPatientSatisfactionFollowingAdultSpinal

DeformitySurgery FarbodRastegar,MD;D.Hamilton,MD;JaymeHiratzka,MD;ShannonHiratzka,MPH;

JustinSmith,MD;ShayBess,MD;JustinScheer,BS;AlanDaniels,MD;VirginieLafage,PhD;RobertHart,M.D.

1:28-1:39 DISCUSSION

Session#7 Miscellaneous Moderators: JasonSavage,MDandRaymondHah,MD(1:40–2:10)1:40-1:45Paper#19 ComplicationsofSpineSurgery:FactorsPredictiveofMalpracticeLitigation

RoyRuttiman,MS;AdamEltorai,BA;J.MasonDePasse,MD;BielinskyBrea,BS;MarkPalumbo,MD;AlanDaniels,MD

1:46-1:51Paper#20 BioskillsLaboratoryforResidentEducation BarrettBoody,MD;JasonSavage,MD;WellingtonHsu,MD1:52-1:57Paper#21 The Utility of Routine Hematologic Values Following Elective Posterior Lumbar

InstrumentedSpinalFusion DanielBaluch,MD;ChristopherO'Boynick,MD;DanielDixon,MD;BruceDarden,MD;

SusanOdum,PhD;LeoSpector,MD1:58-2:03Paper#22 ResultsofLSRSMembershipQuestionnaireRegardingFusionSurgeryforLumbar

StenosisandSpondylolisthesisDavidKim,MD;KadimcheriaPraveen,MD;KevinBaker,PhD;JeffreyFischgrund,MD

2:04-2:10 DISCUSSION

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Symposium#2 DebatesModerators: RobertHeary,MDandJeffFischgrund,MD(2:11–3:20)L4-5grade1degenerativespondylolisthesis2:11-2:13 Casepresentationbymoderator

2:14-2:16Position#1 Posteriordecompression/instrumentedfusion RickSasso,MD

2:17-2:21Position#2 MISTLIF MickPerez-Cruet,MD

2:22-2:26Position#3 Lateralinterbodyfusion/percutaneousscrews FrankPhillips,MD

2:27-2:32 DiscussionL5-S1DDDwithretrolisthesisanddischerniationwithLBP=Legpaininahealthyyoung(40-50yearold)male2:33-2:35 Casepresentationbymoderator

2:36-2:40Position#1 Discectomy/decompression JeffreyCoe,MD

2:41-2:45Position#2 TLIF MichaelLee,MD

2:46-2:50Position#3 ALIF DavidKim,MD

2:51-2:56 DiscussionLumbarSpinalDeformity(Mild)withmismatchofpelvicparameters,minimalbackpainwithsignificantradiculopathy2:56-2:58 Casepresentationbymoderator

2:59-3:03Position#1 Decompressionalone HarveySmith,MD

3:04-3:08Position#2 Shortsegmentposteriordecompressionandfusion CliffordTribus,MD

3:09-3:13Position#3 Ant/postdecompression+fusionwithosteotomies DanielSciubba,MD

3:14-3:20 Discussion

3:20-3:40 Break

Session8 RapidFire-PointPresentations-2Moderators: AndrewDailey,MDandShahDodwad,MD(3:40–4:32)

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3:40-3:42RF11 PublicationRateofAbstractsPresentedatLSRSMeetingsisGreaterThanthatofOtherSpineMeetingsPatawutBovonratwet,BS;MatthewWebb,AB;NathanielOndeck,B.S.;JonathanGrauer,MD

3:44-3:46RF12 Dosurgeonsneedtorescrubduringoperationsthatlastlongerthanthreehours?

PooriaHosseini,M.D.;GregoryMundis,M.D.;RobertEastlack,M.D.;JeffPawelek,BS;StacieNguyen,MPH

3:47-3:49RF13 AnatomicConsiderationsofExtraforaminalLumbarInterbodyFusion:ACadavericStudy

AbhishekKumar,MD,FRCSC;SheerazQureshi,MD,MBA;RobertMerrill,BS3:50-3:52RF14 High-DoseParathyroidHormone(1–34)TreatmentCombinedwithLow-DoserhBMP-2

inaRabbitModelofLumbarSpinalFusionChristinaHolmes,PhD;BenjaminElder,MD,PhD;WataruIshida,MD;JohnLocke,_;MaritzaTaylor,BA;TimothyWitham,MD

3:53-3:55RF15 Trisulfated-GlycosylatedPeptideAmphiphileNanofiberScaffoldforSpinalArthrodesisJosephWeiner,BS;DanielleChun,BA;RalphCook,BS;MichaelSchallmo,BS;SungsooLee,PhD;TimmyFyrner,PhD;MarkMcClendon,PhD;SamuelStupp,PhD;WellingtonHsu,M.D.;ErinHsu,PhD

3:56-4:05 DISCUSSION4:06-4:08RF16 ComparisonofTwoCommerciallyavailableDBMagainstAutologousBoneinaRat

PosterolateralSpineFusionModelSamuelGrinberg,BA;AntonioBrecevich,BA;PaulKiely,MD;ByungJoYoon,M.S.;JosephNguyen,MPH;FrankCammisa,MD;CelesteAbjornson,PhD

4:09-4:11RF17 WITHDRAWN4:12-4:14RF18 SafetyandModeofActionAssessmentofaNovelProgenitorCellTherapyinaGottingen

MinipigModelfortheTreatmentofDegenerativeDiscDiseaseLaraSilverman,PhD;GalinaDulatova,PhD;TerryTandeski,PhD;KevinFoley,MD

4:15-4:17RF19 InVivoMechanicalFunctionandRemodelingofDisc-LikeAnglePlyStructures(DAPS)for

TotalDiscReplacement;JohnMartin,PhD;SarahGullbrand,PhD;DongHwaKim,PhD;LachlanSmith,PhD;DawnElliott,PhD;RobertMauck,PhD;HarveySmith,MD

4:18-4:20RF20 RegenerationoftheIntervertebralDisc:EvidenceUsingaDefinedMolecularApproach

BasedUpontheNotochordalCellSecretome AjayMatta,PhD;MuhammadKarim,DVMMSC,MPhil;WilliamErwin,DCPhD;David

Isenman,PhD 4:21-4:32 DISCUSSION

Session#9 SurgicalFactorsModerators: AlpeshPatel,MDandJeffreyCoe,MD(4:33–5:00)

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4:33-4:38Paper#23 TheutilityorEMGstimulationcomparedtointraoperativeimagingwiththeO-ARMfor

evaluatingpediclescrewbreaches:AProspectivestudyof1006Screwsin164casesRickyKalra,M.D.;EricaBisson,MD,MPH;MeicSchmidt,MD,MBA;AndrewDailey,MD

4:39-4:44Paper#24 ImpactofSarcopeniaonPost-OperativeMorbidityandMortalityFollowingLumbar

SpineSurgeryStevenBokshan,MD;StephenMarcaccio,BS;AlexHan,BS;J.MasonDePasse,MD;AlanDaniels,MD

4:45-4:50Paper#25 TransforaminalLumbarInterbodyFusionProtectsAgainstEarlyPedicleScrewLoosening

DavidKim,MD;RiyaJoshi,MPH,MBBS;KevinBaker,Ph.D;GyuHoLee,BA;DanielPark,MD;RickSasso,MD;PaulArnold,MD;JeffreyFischgrund,MD

4:51-5:00 DISCUSSION5:00 Announcements5:00 Adjourn

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April15,2016-Friday6:00-7:00 ContinentalBreakfast/Posters7:00-7:10 OpeningRemarks

JonathanGrauer,MD

Session#10 SurgicalTechniques-1Moderators: RickSasso,MDandAlexChing,MD(7:10-7:44)7:10-7:15Paper#26 OutcomesandComplicationsofSacralAlar-Iliac(S2AI)versusTraditionalIliacPelvic

FixationDanielKang,MD;MahatiMokkarala,B.S.;JacobBuchowski,MD;PanyaLuksanapruska,MD;LawrenceLenke,MD

7:16-7:21Paper#27 ReoperationRatesFollowingSingle-LevelDiscectomyPatrickHeindel,BS;AlexanderTuchman,MD;PatrickHsieh,MD;MartinPham,MD;NeilPatel,MD;AndreJakoi,MD;RaymondHah,MD;JohnLiu,MD;ZoricaBuser,PhD;JeffreyWang,MD

7:22-7:27Paper#28 TheEffectofanAdjustableHingedOperatingTableonLumbarLordosisduringLumbar

SurgeryArjunSebastian,MD;AminMohamedAhmed,MD;BradfordCurrier,M.D.;MichelleClarke,MD;AhmadNassr,MD;IlyasAleem,MD

7:28-7:33Paper#29 TotalenblocSpondylectomyforLocallyAggressiveandPrimaryMalignantTumorsof

TheLumbarSpine:SurgicalandOncologicalOutcomesRafaelDelaGarza-Ramos,M.D.;C.RoryGoodwin,M.D./Ph.D.;AliBydon,M.D.;Jean-PaulWolinsky,M.D.;TimothyWitham,MD;ZiyaGokaslan,M.D.;DanielSciubba,M.D.

7:34-7:44 DISCUSSION

Session#11 SurgicalTechniques-2 Moderators: MichaelDaubs,MDandBradfordCurrier,MD (7:45-8:19)7:45-7:50Paper#30 RandomizedControlledTrialofMinimallyInvasiveSacroiliacJointFusionUsing

TriangularTitaniumImplantsvs.Non-SurgicalManagementforSacroiliacJointDysfunctionDavidPolly,Jr,MD;JonathanSembrano,MD;CharlesLedonio,MD;DanielCher,MD

7:51-7:56Paper#31 SpinalStenosisintheAbsenceofSpondylolisthesis:CanInterlaminarStabilizationat

SingleandMulti-levelsProvideSustainableRelief? ByungJoYoon,M.S.;DanielShein,MD;SamuelGrinberg,BA;FrankCammisa,MD;

CelesteAbjornson,PhD

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7:57-8:02Paper#32 OutcomesofLumbopelvicFixationintheTreatmentofComplexSacralFracturesUsing

MinimallyInvasiveSurgicalTechniquesEhsanJazini,MD;EmekaNwodim,MD;OliverTannous,MD;NicholasCaffes,BS;TimothyCostales,BS;TristanWeir,BS;EugeneKoh,MD,PhD;KelleyBanagan,MD;DanielGelb,MD;StevenLudwig,MD

8:03-8:08Paper#33 EvaluationofSacralEnd-platePenetratingScrewforLumbosacralFusion:ACadaveric

BiomechanicalStudyGrigorGrigoryan,MD;WayneCheng,MD;SerkanInceoglu,PhD;OlumideDanisa,MD;YusufAkpolat,MD;PhillipGrigsby,BS

8:09-8:19AM DISCUSSION

Session#12 Deformity-1Moderators: CliffordTribus,MDandToddChapman,MD(8:20-8:49)8:20-8:25Paper#34 DoesSingle-versusTwo-StagePedicleSubtractionOsteotomyinSpinalDeformity

SurgeryInfluencePerioperativeComplications? DanielKang,MD;RonaldLehman,MD;LawrenceLenke,MD;PanyaLuksanapruska,

MD;ToddChapman,MD;LionelMetz,MD;JamalMcClendon,Jr.,MD 8:26-8:31Paper#35 SurgicalTiming,andnotSurgicalInvasiveness,isPredictiveofPerioperativeOutcomes

AfterLongPosteriorFusionsforAdultSpinalDeformity:ANeedforSpeed?AndreSamuel,BBA;MichaelFu,MD;NidharshanAnandasivam,BS;AdamLukasiewicz,MSc;MatthewWebb,AB;HanJoKim,MD;JonathanGrauer,MD

8:32-8:37Paper#36 LowFusionGradeDoesNotImpactTwo-YearHealthRelatedQualityofLifeUnlessRodFractureOccursforAdultSpinalDeformityFarbodRastegar,MD;TamirAilon,MD;D.Hamilton,MD;RobertHart,M.D.;EricKlineberg,MD;VirginieLafage,PhD;ShayBess,MD;AlanDaniels,MD;JustinSmith,MD;ChristopherShaffrey,MD

8:38-8:48AM DISCUSSION

SYMPOSIUM#3 SpinespecificconsiderationsofosteoporosisModerator: PaulAAnderson,MDandJeffreyDick,MD(8:49–9:24)8:49-8:54 Overviewofmanagement/medications

PaulAAnderson,MD

8:55-9:00 Osteoporoticcompressionfractures DonMoore,MD

9:01-9:06 DISCUSSION

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9:07-9:12 Preoperativeoptimization TBD

9:13-9:18 Considerationsforsurgery DanielSciubba,MD

9:19-9:24 DISCUSSION

9:25-9:45 BREAK

SESSION#13 Deformity-2Moderator: TBDandDanielKang,MD(9:45–10:13)9:45-9:50Paper#37 TheImpactofSurgicalandPatientFactorsonLumbarLordosisforSingle-LevelLumbar

FusionGraceXiong,BA;SerenaHu,MD;ToddAlamin,MD;IvanCheng,MD

9:51-9:56Paper#38 SagittalImbalanceinDegenerativeScoliosisCanBeCorrectedByAddressingOnlythe

SymptomaticLevelsPhilipLouie,MD;StevenPresciutti,MD;MichaelHellman,MD;ChristopherDewald,MD;HowardAn,MD

9:57-10:02Paper#39 ANewClassificationandTreatmentAlgorithmforAcuteandSubacuteAdolescent

SpondylolysisJeffreyDick,MD

10:03-10:13 Discussion

Session#14 FusionModerators: SethWilliams,MDandTimothyMoore,MD(10:14–10:40)10:14-10:19Paper#40 DownstreamMechanismsofArylHydrocarbonReceptorActivation:InhibitoryEffectson

OsteogenicDifferentiationDanielleChun,BA;ChawonYun,PhD;JosephWeiner,BS;RalphCook,BS;MichaelSchallmo,BS;RyanFreshman,BS;JonghwaYun,N/A;AnjanGhosh,N/A;WellingtonHsu,M.D.;ErinHsu,PhD

10:20-10:25Paper#41 PeptideAmphiphile–CollagenSlurryNanogelCompositeasanImprovedBMP-2Carrier

forSpinalArthrodesisRalphCook,BS;JosephWeiner,BS;DanielleChun,BA;SungsooLee,PhD;MarkMcClendon,PhD;RyanFreshman,BS;MichaelSchallmo,BS;SamuelStupp,PhD;ErinHsu,PhD;WellingtonHsu,M.D.

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10:26-10:31Paper#42 ComparativeAnalysisofFusionRatesandAssociatedComplicationsinPatientsWithandWithoutrhBMP2TwoYearsAfterUndergoingAnteriorLumbarInterbodyFusion.JimYoussef,MD;DouglasOrndorff,MD;SueLynnMyhre,PhD;CaciaPope,BS;TaraFaye,BS

10:31-10:40 DISCUSSION

Session#15 DiscModerators: JamesMok,MDandLouisJenis,MD(10:40–11:08)10:40-10:45Paper#43 RegenerationofIntervertebralDiscusingHumanUmbilicalCord-derivedMesenchymal

StemCells MickPerez-Cruet,MD

10:46-10:51Paper#44 NotochordalCell-BasedTherapeuticsCanRegeneratetheDegenerativeDisc

AjayMatta,PhD;MuhammadKarim,DVM,MSC,MPhil;WilliamErwin,DCPhD10:52-10:57Paper#45 CytokineReceptorKnockdownviaCRISPR/Cas9forTreatmentofDiscHerniation-

AssociatedPainJingHan,BA;LiufangJing,MS;JunChen,PhD;LoriSetton,PhD

10:58-11:08 DISCUSSION

Session#16 RapidFire-PointPresentations-3Moderators: KojoHamilton,MDandMichaelLee,MD(11:08–12:00)11:08-11:10RF21 LumbopelvicFixationProvidesBetterFixationThanOneTrans-SacralScrewinComplex

SacralFracturesEhsanJazini,MD;NoelleKlocke,MS;OliverTannous,MD;TristanWeir,BS;HermanJohal,MD,PhD;DanielGelb,MD;JasconeNascone,MD;RobertO'Toole,MD;BrandonBucklen,PhD;StevenLudwig,MD

11:11-11:13RF22 PercutaneousLumbopelvicFixationTechniqueforReductionandStabilizationofSacral

FractureswithSpinopelvicDissociationPatterns SethWilliams,MD 11:14-11:16RF23 APosterior-OnlyLumbopelvicApproachIsNotBiomechanicallyStableEnoughfora

ComplexSacralZoneIIFractureWithAnteriorPubisSymphysisDisruptionEhsanJazini,MD;NoelleKlocke,MS;OliverTannous,MD;TristanWeir,BS;HermanJohal,MD,PhD;DanielGelb,MD;JasconeNascone,MD;RobertO'Toole,MD;BrandonBucklen,PhD;StevenLudwig,MD

11:17-11:19RF24 LumbosacralEpiduralLipomatosis:aMatchedControlStudy VarunPuvanesarajah,BS;BarisYildirim,BS;HowardAn,MD;AmitJain,MD;Francis

Shen,MD;HamidHassanzadeh,MD

14

11:20-11:22RF25 QuantifyingtheLearningCurveforMinimallyInvasiveTransforaminalLumbarInterbodyFusionAbhishekKumar,MD,FRCSC;RobertMerrill,BS;JoshuaMeaike,BS;SamuelOverley,MD;DanteLeven,DO;SheerazQureshi,MD,MBA

11:23-11:33 DISCUSSION11:34-11:36RF26 X-rayReliabilitytoDetectSpinousProcessFracturesafterPlacementofInterspinous

ProcessSpacerWilliamLavelle,MD;AaronBianco,MD;MarkPalumbo,MD;IanMadom,MD;RichardTallarico,MD;MauricioValdes,MD;MichaelGalgano,MD;HenakuYirenkyi,MD;FredGeisler,MD,PhD

11:37-11:39RF27 DoesLevelofResponsetoSIJointBlockPredictresponsetoSIJointFusion?DavidPolly,Jr,MD;JonathanSembrano,MD;CharlesLedonio,MD;DanielCher,MD

11:40-11:42RF28 NarcoticConsumptionFollowingaMinimallyInvasiveTransforaminalLumbarInterbody

Fusion:AnAgeBasedAnalysisDustinMassel,BS;BenjaminMayo,BA;WilliamLong,BA;KrishnaModi,BS;DanielBohl,MD,MPH;KernSingh,MD;

11:43-11:45RF29 RiskFactorsforProlongedPostOperativeNarcoticUseAfterSpineSurgeryLindaSuleiman,MD;BrettRosenthal,MD;AbhishekKannan,B.S.;AdamEdelstein,MD;WellingtonHsu,M.D.;AlpeshPatel,MD,FACS

11:46-11:48RF30 IatrogenicSpondylolisthesisFollowingLaminectomyforDegenerativeLumbarStenosis:SystematicReviewandCurrentConceptsDaipayanGuha,MD;RobertHeary,MD;MohammedShamji,MD,PhD,FRCSC

11:49-12:00 DISCUSSION

12:00 Closingremarks12:00pm Adjourn