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孟氏骨折和盖氏骨折旳分类和治疗孟氏骨折概述病因伸直型TypeI(orextensiontype)-60%ofcases:-anteriordislocationofradialhead(orfrx)andfractureofulnardiaphysisatanylevelw/anteriorangulation(usuallyproximalthird);-exam:attempttopalpateradialhead(ant,post,orlateral);-PINpalsyismostcommonintypeIfrxandmayoccurinadelayedfashioniftheradialheadisnotpromptlyreduced屈曲型TypeII(flexiontype)-15%-posteriororposterolateraldislocationofradialhead(orfrx);-frxofproximalulnardiaphysiswithposteriorangulation;-posteriorMonteggiafrxisreducedbyapplyingtractiontoforearmw/theforearminfullextension;-immobilizationiscontinueduntilthereisunionoftheulna;-thisordinarilyrequires6-10wksdependingontheageofpt;内收型TypeIII-20%-lateraloranterolateraldislocationoftheradialhead;-fractureofulnarmetaphysis;-frxofulnajustdistaltocoronoidprocessw/lateraldislocationofradialheadTypeIV(5%)-anteriordislocationoftheradialhead;-frxofproximal1/3ofradius&frxofulnaatthesamelevelExam:-r/otearoftheannularligament-associatednerveinjury:-paralysisofdeepbranchofradialnerveismostcommon;-posteriorinterosseousnervemaybewrappedaroundneckofradius,preventingreduction;-note:thatpatientswhoseoperativetreatmentisdelayedmaybefoundtohaveaprogressivePINpalsyfromconstantpressureexertedbythedislocatedradialhead;-spontaneousrecoveryisusual&explorationisnotindicated经验症状检验治疗治疗治疗盖氏骨折Galeazzi骨折受伤机制骨折分型骨折分型骨折分型症状和体征X线体现治疗
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