Subluxation or Dislocation of the Radial Head « Conditions ... | Radial head subluxation
Radial head subluxations are caused when a part of the annular ligament slips over the head of the radial bone, thereby causing the ligament to ...AboutusCareersMedicalLibraryAda›Conditions›SubluxationorDislocationoftheRadialHeadSubluxationorDislocationoftheRadialHeadWrittenbyAda’sMedicalKnowledgeTeamUpdatedonJanuary3,2020,12:19PMUTCOnthispageWhatissubluxationordislocationoftheradialhead?TypesSymptomsCausesRisksDiagnosisTreatmentPreventionOthernamesforsubluxationoftheradialheadFAQsWhatissubluxationordislocationoftheradialhead?Subluxationoftheradialheadisaninjuryaffectingtheelbowjoint.Thetermsubluxationmeanspartialdislocation,whiletheradialheadisthenamegiventothetopoftheradius,oneofthetwolargebonesfoundintheforearm.Therefore,subluxationoftheradialheadisaninjurywherethetopoftheradialbonebecomespartiallydislocatedfromtherestoftheelbow.[1]Thecondition,alsocommonlyreferredtoasapulledelbow,babysitter’selbow,nursemaid’selbow,RHSorannularligamentdisplacement,canbecausedbyaquickpulltotheforearmandisacommoninjuryinchildren,particularlybetweentheagesofonetofour.[2]Thisisbecausetheannularligamentthatholdstheradialboneinplaceattheelbowismuchweakerinyoungchildren,leadingtoagreaterriskofitslippingovertheradialheadwhenfacedwithasudden,pullingforce.[2]Peoplewithapulledelbowtendtoholdtheaffectedarmclosetotheirbody,oftensupportingitagainstthestomachorwiththeotherhand,andareunwillingtousethearm.Theymayreportpaininthearm.Usually,asubluxationoftheradialheadcanbeeasilyfixedbyadoctorbyslippingthejointbackintoplace,andcomplicationsareuncommon.[3]Fulldislocationsoftheradialheadaremuchlesscommoninchildrenandarealsorareinadults.Iftheydooccur,theyaretypicallytheresultofahigh-forcetraumaorareacongenitalcondition.Symptomsmaybesimilartoapulledelbow,butmoresevere.Itisusualforfullradialheaddislocationstoappearinconnectionwithotherrelatedinjuriesinthearm,suchasaforearmfracture.[4]Treatmentthereforefocusesonallassociatedinjuriesandmayinvolvesurgery.TypesofradialheadsubluxationanddislocationTypesofradi
常見健康問答
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