简介：Objective:Toevaluatetheefficacyandsignificanceofposterolateralfusioninpreventingfailureofshort-segmentstabilizationforthetreatmentofthoracolumbarburstfractures.Methods:Sixtypatientswiththoracolumbarburstfractureswereincludedinthestudy.Thepatientswereclassifiedintotwogroups(n=30ineachgroup).InGroupA,patientsweretreatedinourhospitalwithshort-segmentinstrumentationviaposterolateralfusionwithiliacbone.InGroupB,patientsweretreatedinotherhospitalwithshort-segmentfixationwithoutfusion.Allcasescametoourhospitalforreexamination.Therewere18malesand12femalesinGroupAwithameanageof42.3years(range,24to52years)and16malesand14femalesinGroupBwithameanageof41.5years(range,19to54years).Radiographic(Cobbangle,kyphosisofthevertebralbody,andsagittalindex)andclinicaloutcomes(LowBackOutcomeScore)wereanalyzedafteranaveragefollow-upof16months.Results:Afteroperation,Cobbanglewasreducedfrom19.3°to3.1°inGroupAandfrom19.1°to3.3°inGroupB(P>0.05).Itwas5.9°inGroupAand11.9°inGroupBatthefinalfollow-up(P<0.01).Itsaveragelossofcorrectionwas2.8°inGroupAand8.6°inGroupB.Averagekyphosisofthevertebralbodywasreducedfrom21.3°to6.2°inGroupAandfrom21.7°to7.4°inGroupB(P>0.05).Itwasdecreasedto7.9°inGroupAand13.5°inGroupBatthefinalfollow-up(P<0.01).Itsaveragelossofcorrectionwas1.7°inGroupAand6.1°inGroupB.Sagittalindexwasreducedfrom21.3°to3.6°inGroupAandfrom20.5°to3.8°inGroupB(P<0.05).Itwasdecreasedto5.1°inGroupAand9.8°inGroupBatthefinalfollow-up(P<0.01).Itsaveragelosswas1.5°inGroupAand6.0°inGroupB.InGroupA,73.3%ofpatientshadanexcellentresultbasedonLowBackOutcomeScoresystem,whilethatinGroupBwasonly43.3%.Conclusions:Posterolateralfusionisaneffectivemeasuretopreventimplantfailure,anddecreaselo