•Definition•Anatomy•Classification•Treatment•Summary•DiscussionBasedonwhatyoualreadyknow,choosethebestanswer.1.Imagethatifyoufalldownonthestreet,inwhichposturecanavoidserioushurt?A.B.C.D.Basedonwhatyoualreadyknow,choosethebestanswer.DefinitionDistalradiusfracturesisabreakofthepartoftheradiusbonewhichisclosetothewristwhichlessthan3cmfromthearticularsurfaceBasedonwhatyoualreadyknow,choosethebestanswer.2.Whenyouaregoingtoeatasugarcane,Whichpartistheeasiesttobreak.A.ThejointB.NearthejointC.MiddleofthepoleD.Sorry,I'venevereatensugarcane.Cortico-CancellousJunctionCancellousbonesCompactbonesAnatomyTipofradialstyloidTipofradialstyloidRadialinclination(APview)20-25°RadialStyloidtipPalmartilt(LateralView)10-15°RadiocarpalContactSymptomsPainBruisingSwelling&AppearanceDeformityDiagnosisX-rayisfastandpreciseClassification：CollesFractureDescribedbyAbrahamCollesin1814.Itisthemostcommonofallfracturesinelderly(1/6).AbrahamColles(1773-1843)MechanismofAction"Dinnerfork"deformity8°13°Classification：SmithsFractureRobertWilliamSmith(1807-1873)1847R.W.Smithfirstlydescribeit.OftenreferredtoasareverseCollesfracture.MechanismofAction"Bayonet"deformity32°15°TreatmentGoal•Painfree•Mobile•Stablewrist•EconomicTreatment:DistalradiusfractureUndisplacedDisplacedImmobilizationofplasterorcastClosedreductionHardtoreduction/InstableSucceedFailedSurgeryFunctionalexerciseFollow-upClosedReductionSurgeryReplaceImmobilizationRehabilitation(3month-1year)SurgicalMaterialsPriceeconomySuitableforSimplefracturePoorstabilitySurgicalMaterialsSuitableforcomplexfractureGoodstabilityQuickrecoverySurgicalMaterialsSuitableformulti-segmentcomminutedfractureGeneralstabilitySlowrecoverySummary•DistalradiusfractureistheMOSTcommonfractureofthewholebody.•ThedifferencebetweentheCOLLESandSMITHfracture.•Thetypicaldeformityofbothtwokindsoffracture.•Thetreatmentofthefracture.•ThemethodofClosedReduction.Exercises:•DescribewhatisthedifferentbetweentheCollesFractureandtheSmithFracture.Exercises:Case1:MaleAge:23FalldownfromthebikeSwellingoftheRightwrist,Painandlimitedformovementoftherightwrist“dinnerfork”deformityExercises:Case2:FemaleAge:55SlipdownontheiceSwellingoftheRightwrist,Painandlimitedformovementoftherightwrist“bayonet”deformityApley’sSystemofOrthopaedicsandFractures–9theditionEssentialOrthopaedics–Maheshwari&Mhaskar–5theditionCampbell'sOperativeOrthopaedics–25thchapter
