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1、CHAPTER70HANDSURGERYDavidNetscher,KevinMurphy,andNicholasA.Fiore,IIandsmall(little)fingers.Theuseofnumberstodesignatedigitsbasicanatomyisnolongeraccepted(Fig.70-1).Withinthehand,thosestruc-examinationanddiagnosisturesclosetothefingertipsaretermeddistal,whereasthoseprinciple
2、softreatmentfurtheruptowardthewristaretermedproximal.Motioninatraumapalmardirectionisflexion,whereasdorsalmotionistermedinfectionsextension.Fingermotionawayfromthelongfingeraxisistermedcompartmentsyndrome,high-pressureinjectionabduction,whereasmotiontowardtheaxisofthelongfi
3、ngerisinjuries,andextravasationinjuriestermedadduction.Thedescriptionofthemotionofthethumbtenosynovitisissometimesconfusing.Extensionofthethumbisintheplanenervecompressionsyndromesofthepalmofthehand,whereaspalmarabductionofthethumbisthemotionthatoccursat90degreesawayfromthe
4、planeoftumorsthepalm.Finally,sidetosidemotionofthewrististermedradialcongenitalanomaliesandulnardeviation.osteoarthritisandrheumatoidarthritisIntrinsicmusclesofthehandarethosethathavetheircontracturesoriginsandinsertionsinthehand,whereastheextrinsicmusclesconclusionhavethei
5、rmusclebelliesintheforearmandtheirtendoninser-tionsinthehand.Theintrinsicmusclesthatmakeupthethenareminencearetheabductorpollicisbrevis(APB),flexorpollicisbrevis(FPB),opponenspollicis(OP),andadductorpollicisAlthoughhandsurgeryfellowshipstraditionallyreceivetrainees(AP).Ther
6、earefourdorsalinterosseithatarisefromadjacentprimarilywithbackgroundsinorthopedicsurgeryorplasticsidesofeachmetacarpalandprovideabductionofthemetacar-surgery,fellowshiptraininginhandsurgerymayalsobeunder-pophalangeal(MP)jointsoftheindex,middle,andringfingers.takenbythosehav
7、ingcompletedaresidencyingeneralsurgery.Therearethreepalmarinterosseithatadducttheindex,ring,Basictenetsofhandsurgerymustbeacquiredbyallgeneralandlittlefingerstowardthemiddlefinger.Fourlumbricalsorigi-surgeons.Dependingonthepracticelocale(ruralorurban),nateontheflexordigitor
8、umprofundus(FDP)tendonsinthetypeofhospital,andresidencyrotations(e.g.,surgicalinte
