Ngaba uyayazi imbali ye-intramedullary nailing?

Ukufika kwesikhonkwane se-intramedullary kuguqule unyango lwamathambo amade. Nangona obu buchule bebukho kangangeenkulungwane, abuzange bufezekise ubume obukhoyo ngoku de kwakwisiqingatha sesibini senkulungwane yama-20.

Indlela eya empumelelweni yayingasoloko ilula, njengoko obu buchule babudibana nokuthandabuza nokuchaswa ngabaphengululi abaninzi kwisiqingatha sokuqala senkulungwane yama-20. Namhlanje, ngokusebenzisa izinto ezintsha kwi-metallurgy, ubuchule botyando kunye nezakhono ze-fluoroscopic, i-intramedullary nailing ibe ngumgangatho wokunyamekela ukuphuka kwamathambo amade.

Inkqubela phambili kulwazi lwe-biomechanical yabantu yenze ukuba ukudalwa kolu yilo lwangoku lwenzeke. Ukubethelwa kwezikhonkwane kwi-intramedullary yanamhlanje kubonakala ngamazinga asezantsi osulelo, amanxeba amancinci, uzinzo oluhle lokwaphuka, kunye nokushukuma kwesigulana kwangoko.

Uphononongo lwembali oluqhutywe kweli nqaku lujolise ekushwankatheleni ukuguquka kwesikhonkwane se-intramedullary, ukugqamisa imilinganiselo yayo ebalulekileyo, ukubonisa ixesha lomoya wokusetyenziswa kokuqala kunye nokuguquka okulandelayo kwesikhonkwane se-intramedullary, kunye nokwazisa indawo yesikhonkwane se-intramedullary kwi-orthopedics yanamhlanje kunye ne-traumatology (umz., Umfanekiso 1).

Ukuzalwa kwesikhonkwane se-intramedullary

AmaJiphutha amandulo aqala ukusebenzisa isixhobo se-intramedullary esifana nesikhonkwane. Ukhathalelo oluntsonkothileyo lokuqhawuka koqhaqho bekungenakwenzeka ukuba lubekho kwiminyaka emininzi eyadlulayo.

Into eqinisekileyo, nangona kunjalo, yeyokuba amaJiphutha amandulo ayeneendlela ezinkulu zokuqhola ezisuka kwinkolelo yokuvuswa komzimba kubomi basemva kokufa.

Oku kwakunjalo kumama obizwa ngokuba yi-Usermontu efunyenwe kwingcwaba likaTutankhamun, apho isikhonkwane esinentambo safakwa phakathi kwe-femur kunye ne-tibia ukuzinzisa idolo elihlangeneyo (njengakuMfanekiso 2).

Abembi bezinto zakudala baqikelela ukuba umama ongaphakathi kwi-sarcophagus yayingenguye u-Usermontu ngokwakhe, kodwa omnye umntu owathatyathelw' indawo ngabaphangi bamangcwaba amandulo ngo-600 BCE.

Kwiminyaka eyi-2000 kamva, uBernardino de Sahagun, i-anthropologist kwi-expedition yaseHernando Cortes, wabika ukusetyenziswa kokuqala kwe-intramedullary ukubethelwa kwisigulane esiphilayo eMexico.

Ngomnyaka we-1524, wabona ugqirha wethambo wase-Aztec (obizwa ngokuthi 'i-Tezalo') wenza i-osteotomy usebenzisa i-obsidian knife kwaye wafaka intonga ye-resin kwi-medullary cavity ukuzinzisa ukuphuka. Ngenxa yokunqongophala kweendlela zotyando ezaneleyo kunye ne-antiseptics, ezi nkqubo zinezinga eliphezulu lokuxakeka kunye nezinga eliphezulu lokufa.

1800s: Amanyathelo okuqala

Phakathi kwiminyaka yoo-1800, iijenali zokuqala zonyango zanika ingxelo ngokubethelwa kwe-intramedullary. I-Diefenbach, i-Langenbeck, i-Bardenheuer kunye nabanye oogqirha abathetha isiJamani baye babika ukuba basebenzise izikhonkwane zendlovu kumongo wamathambo amade ukuze baphathe amathambo.

Ngeli xesha, uNicholas Senn waseChicago, umphandi kunye nogqirha wotyando okhutheleyo wasemkhosini, wenza iimfuniselo ngokulungiswa kwe-intramedullary. Uya kusebenzisa umngxuma okroliweyo owenziwe ngethambo lenkomo kwaye awufake kwi-medulla ukunyanga 'pseudarthrosis' emva kokwaphuka.

Kwi-1886, u-Heinrich Bircher waseSwitzerland wachaza kwintlanganiso yokuhlinzwa ukufakwa kwezikhonkwane zendlovu kwi-medulla yonyango olunzima lweefractures ezinzima (Umfanekiso 3).

Kwiminyaka embalwa kamva, uThemistocles Gluck eJamani wadala isikhonkwane sokuqala sendlovu esine-intramedullary esinomngxuma ekupheleni kwesikhonkwane, ngaloo ndlela sazisa ingcamango yokudibanisa okokuqala.

Ngexesha elifanayo, uJulius Nicolaysen waseNorway wayengowokuqala ukubhala malunga nemigaqo ye-biomechanical ye-intramedullary nailing of proximal femoral fractures. Wagxininisa imfuneko yokwandisa ubude besikhonkwane se-intramedullary ukufumana inzuzo enkulu ye-biomechanical kunye nokubonelela ngokhuseleko malunga nethambo lonke.

Wayekwangowokuqala ukucebisa ingqikelelo ye-proximal kunye ne-distal isikhonkwane / ithambo elidibeneyo ukuyila ukutshixa okumileyo. Uthathwa ngabaphengululi abathile njengoyise wokubethelwa kwezikhonkwane kwi-intramedullary.

Phakathi kwiminyaka yee-1800, oovulindlela abanjengoIgnaz Philipp Semmelweis eVienna noJosephLister eGlasgow babesele bebeke isiseko sotyando lokuvala inzala. Oku kwaba yimpumelelo ephantsi kuba ivumele uphuhliso lweendlela ezintsha zotyando phantsi kweemeko ze-aseptic.

1900s: Indaleko

Ngo-1912, ugqirha wotyando waseBritani u-Ernest Hay Groves wayengugqirha wokuqala wotyando ukusebenzisa intonga yentsimbi eyomeleleyo njengesikhonkwane se-intramedullary kwaye wayenguvulindlela wendlela yokubuyisela iinzipho kwi-intramedullary.

Wafumana amava akhe ebudeni beMfazwe Yehlabathi I xa wayenyanga abaguli abanepseudarthrosis ezosulelekileyo ababemadolw’ anzima ukunqumla amalungu abo omzimba. Akazange nje achaze indlela yokuqala yokubethelwa kwe-intramedullary eyavumela i-osseointegration ngokusebenzisa i-trauma encinci, kodwa wayenobuchule bokusebenzisa izikhonkwane ze-intramedullary kunye nezikhonkwane ezincinci ukulungisa iifractures.

Wazama ukufakelwa okwenziwe nge-aluminiyam, i-magnesium kunye nentsimbi kwaye waqaphela ukubaluleka kwe-biomechanics ekuphiliseni ukuphuka. Nangona kunjalo, ubuchule buka-Ernest Hay Groves bube nenqanaba eliphezulu losulelo kwaye ke ngoko bebungathandwa kangako ngabantu bexesha lakhe.

Ngomnyaka we-1931, uSmith-Petersen, ugqirha wamathambo waseMelika, wazisa isikhonkwane sentsimbi esinamaphiko amathathu kunyango lwe-intra-articular capsule femoral neck fractures. Wayila indlela evulekileyo eyenza i-incised yangaphambili yesithathu ye-iliac crest, yangena kwintsimi yokusebenza ecaleni komda wangaphambili we-fascial tensor ebanzi, emva koko wabeka kwakhona i-fracture kwaye wasebenzisa i-impactor ukuze aqhube i-stainless steel screw kwintloko ye-femoral (Umfanekiso 4).

Ngenxa yempumelelo yolingo lweSmith-Petersen, oogqirha abaninzi botyando baqalisa ukwenza amalinge ofakelo lwentsimbi lwezaphukileyo. U-sven Johansson wasungula isikhonkwane esingaphakathi kwi-intramedullary ngo-1932; ubuchule bakhe obutsha busebenzise inaliti yekerfing evumela ukufakwa okukhokelwayo ngeradiologically kwesikhonkwane se-intramedullary. Ezona nxalenye zobugcisa azisebenzisayo zisasetyenziswa nanamhlanje.

Ukuya kwelinye inyathelo ukuya phambili, uRush kunye nomntakwabo bazisa umbono we-elastic intramedullary nail ngo-1937.

Basebenzisa i-elastic, i-pre-bent steel stainless intramedullary isikhonkwane kwaye bazama ukudala i-intramedullary ye-fixation structure yokulungisa ukuchasana nokuthambekela kwe-axial displacement malunga ne-fracture.

Kwingcamango yabo, indawo ye-tissue ethambileyo esebenzayo isebenza njengebhendi yoxinzelelo echasene noxinzelelo oluveliswa yisikhonkwane esigobe ngaphambili. Ulwakhiwo lwabo lwaluthintelwe ziipropathi ezilastiki zentsimbi engatyiwayo, ezatshintsha kwangethuba ukusuka kwi-elastic deformation ukuya kwi-plastic deformation. Oku kokugqibela kunokukhokelela ekufudukeni kwesibini kunye nokuphiliswa kokukhubazeka.

Ukongeza, izikhonkwane ze-intramedullary zivame ukuphuma emnyango okanye zingene kwizakhiwo zamathambo ezikhanseliwe, okanye zityhutyhe ngaphakathi kwendawo edibeneyo. Nangona kunjalo, umphengululi waseViennese u-Ender uqhubekile nokusebenzisa obu buchule njengesiseko sesikolo se-Ender sokulungiswa koqhekeko kwaye lusasetyenziswa nanamhlanje ukulungisa okubhetyebhetye kokwaphuka kwabantwana.

Isikhonkwane somongo wethambo

Ngowe-1939, ugqirha wotyando waseJamani uGerhard Küntscher, owatyunjwa ngeBhaso leNobel, wavelisa isikhonkwane esingenasici sentsimbi esingenasici sokunyanga ukophuka kwesiqu sebhinqa.

U-Küntscher nabanye baphenjelelwa zizikrufu zentsimbi ye-Smith-Petersen ezisetyenziselwa ukunyanga iintlungu zentamo yebhinqa kwaye babekholelwa ukuba imigaqo efanayo inokusetyenziswa ekuqhekekeni kwesiqu. Isikhonkwane se-intramedullary abayiphuhlisileyo ekuqaleni yayiyi-V kwi-cross-section kunye ne-7-10 mm ububanzi.

Emva kwezifundo ze-cadaveric kunye nezilwanyana, wabonisa isikhonkwane se-intramedullary kunye nendlela yokuhlinzwa kwintlanganiso yokuhlinzwa eBerlin ngo-1940. Ekuqaleni, i-innovation yakhe yayigculelwa ngabalingane bakhe baseJamani, nangona indlela yakhe yafumana ukuthandwa emva kweMfazwe Yehlabathi II.

UHippocrates (460-370 BC), ugqirha wamandulo wexesha lamaGrike wayedla ngokubizwa ngokuba nguyise wamayeza, wakha wathi, 'Lowo unqwenela ukwenza utyando kufuneka aye emfazweni'; kwakunjalo nangoKüntscher.

Ngexesha lamaNazi, uKüntscher wayekwisibhedlele esikwilizwe laseFinland. Apho, wakwazi ukwenza utyando kwizigulana namabanjwa emfazwe kuloo mmandla. Wazisa ingcamango yokubethelela umongo wethambo usebenzisa indlela yotyando evaliweyo nevulekileyo, ngokulandelelanayo.

Kwindlela evaliweyo, wadlulisa isikhonkwane se-intramedullary kwindlela yokuphucula ngokusebenzisa i-trochanter enkulu kwaye wayibeka kwitafile yokurhoxisa esebenza ngesilingi. I-fracture iphinde ibekwe kwaye isikhonkwane sifakwe kwiindiza ezimbini usebenzisa i-head fluoroscopy. Kwindlela evulekileyo, isikhonkwane se-intramedullary sifakwe kwi-fracture kwi-medulla ngokusebenzisa i-incision kufuphi ne-fracture line.Küntscher isebenzisa i-intramedullary nail ukuphatha i-femoral stem fractures kunye ne-tibial kunye ne-humeral fractures.

Ubuchule bukaKüntscher baba nodumo kwihlabathi liphela kuphela emva kokubuyiselwa ekhaya kwamabanjwa emfazwe aManyeneyo.

Ngale ndlela oogqirha baseMelika nabaseBrithani baqhelana nesikhonkwane se-intramedullary esaphuhliswa nguKüntscher kwaye baqaphela iingenelo zayo ezicacileyo ngeli xesha leendlela zonyango zonyango.

Ngexeshana nje elingephi, oogqirha botyando abangakumbi nangakumbi ehlabathini lonke baqalisa ukusebenzisa indlela yakhe, yaye isikhonkwane sikaKüntscher esikwi-intramedullary saluguqula unyango lwezaphulelo ngokunciphisa ixesha lokuchacha komguli phantse phantse unyaka wonke. Izigulana ebekuya kufuneka zifakwe isamente kangangeenyanga ngoku zinokuhamba ngeentsuku nje ezimbalwa.

Ukuza kuthi ga ngoku, ugqirha wotyando waseJamani uthathwa njengomphuhlisi ophambili wesikhonkwane se-intramedullary, kwaye unendawo ebalulekileyo kwimbali yotyando lokwenzakala.

Ukwandisa Intramedullary Nail

Ngowe-1942, uFisher et al. okokuqala kuchazwe ukusetyenziswa kwe-drill yokugaya umongo ukwandisa indawo yokudibanisa phakathi kwesikhonkwane se-intramedullary kunye nethambo kunye nokuphucula ukuzinza kwe-fracture fixation.

Nangona kunjalo, i-Küntscher yazisa i-flexible-guide reming drill esasetyenziswa nanamhla kwaye ixhasa ukuphinda kuphinde kuphinde kuphinde kuvele kubude bonke bomgodi we-medullary wesiqu sethambo ukuququzelela ukufakwa kwezikhonkwane ezinkulu ze-intramedullary.

Ekuqaleni, ukulungiswa kwe-intramedullary yenzelwe ukunyusa kakhulu indawo yoqhagamshelwano lwethambo kunye nesikhonkwane se-intramedullary ukulungiswa okuzinzile kwe-fracture kunye nokunyakaza kwesigulane ngokukhawuleza.

Njengoko kuchazwe nguSmith et al, yonke i-1 mm yokwandiswa kwe-medullary yandisa indawo yoqhagamshelwano nge-38%. Oku kuvumela ukusetyenziswa kwezikhonkwane ezinkulu kunye nokuqina kwe-intramedullary, ukuphucula ukuzinza ngokubanzi kwesakhiwo sokulungiswa kwefracture.

Nangona kunjalo, nangona isikhonkwane se-intramedullary sase-Küntscher kunye ne-flexible intramedullary reaming drill yaba yinto efanelekileyo yokhetho lwesixhobo sokulungiswa kwangaphakathi kwi-osteotomy, i-academia yaphulukana nenkoliseko yayo ekupheleni kweminyaka yoo-1960 ngokuthanda iipleyiti ezisanda kuphuhliswa ze-Arbeitsgemeinschaft für Osteosynthesefragen (A).

1960s: AmaXesha Obumnyama

Ngeminyaka yoo-1960, ukubethelwa kwe-intramedullary kwapheliswa ngequbuliso kulungiselelwa ipleyiti kunye nokulungiswa kokuqhekeka kwesikrufu.

Nangona indlela kaKüntscher yayisebenza ngokutyibilikayo, oogqirha botyando ehlabathini lonke bayikhaba ngaw’ omane le ndlela ngenxa yeziphumo ezibi emva kotyando.

Ukongezelela, abanye oogqirha botyando baqalisa ukulahla ubugcisa bemitha, obufana ne-fluoroscopy yentloko, kuba oogqirha botyando bacatshukiswa ziziphumo ebezingalindelekanga ezinxulunyaniswa nemitha. Uphuhliso lwe-intramedullary nailing aluzange luyeke apho, nangona imvumelwano yehlabathi jikelele yokusetyenziswa kweenkqubo zokulungiswa kwangaphakathi kweplate.

UGqirha waseJamani uKüntscher, wazibona iingenelo zokudityaniswa waze wavelisa isikhonkwane esivanayo esimile okwegqabi le-clover, awasibiza ngokuba 'sisikhonkwane sokuvalelwa'. Isithende se-Achilles soyilo lwesikhonkwane se-intramedullary ngelo xesha sasingenakukwazi ukuzinzisa iifractures ezixutywe kakhulu okanye iifractures eziye zafuduswa kwii-angles ezinkulu Isisombululo sale ngxaki kukusetyenziswa kwezikrufu zokutshixa.

Isisombululo sale ngxaki yayikukuzinzisa isikhonkwane se-intramedullary ngesikrufu sokutshixa.

Ngale ndlela, ukufakelwa kunokumelana ngcono nokugoba kunye namandla okugoba ngelixa kuthintela ukunqunyulwa kwemilenze. Kusetyenziswa indibaniselwano yeengcamango ezivela ku-Küntscher, uKlaus Klemm, noWolf-Dieter Schellmann, isikhonkwane se-intramedullary saphuhliswa ukunika uzinzo olukhulu ngokubholwa kwangaphambili kwemingxuma yesikrufu esondele kunye ne-distal ukuya kwisikhonkwane se-intramedullary, esasitshixiwe kwisikrufu esifakiweyo.

Kwiminyaka embalwa ezayo, ukuqhubela phambili kokucaca komfanekiso we-fluoroscopic kuvunyelwe ukuphinda kukhethwe ukuvalwa kwe-fracture kunye neendlela zokunciphisa.

1970 kunye 1980s: Imvuselelo

Ngeminyaka yee-1970, umdla kwingqikelelo ye-intramedullary yokubethelwa kagqirha waseJamani u-Küntscher wawunamandla.

Ukucuthwa kokunciphisa ukulungiswa kwe-intramedullary ye-fractures, kunye ne-intersection ye-flexible reming kunye ne-interlocking concepts kunye nokucaciswa okucacileyo kobuchule be-fluoroscopic, kuqhube ukuqhubela phambili kunye nokusasazwa kobu buchule bugqwesileyo botyando, obubonakaliswa ngumonakalo omncinci omncinci wezicubu ezithambileyo, ukuzinza okulungileyo, kunye nokuhamba kwesigulane ngokukhawuleza.

Ngelo xesha, ihlabathi lezemfundo latshayelwa kuluhlu lwezinto ezintsha eziqhubela ukuphuhliswa kwesizukulwana sesibini sokubethelwa kwe-intramedullary.

Ngomnyaka we-1976, i-Grosse kunye ne-Kempf yenza isikhonkwane se-intramedullary esifakwe ngokuyinxenye ukusombulula ingxaki ye-elastic modulus ye-intramedullary nail. Isikhonkwane se-intramedullary asizange sifakwe kwingingqi ye-proximal kwaye sasinomngxuma wesikhonkwane kwi-screw proximal, efakwe kwi-angle ye-45-degree ukwandisa ukuqina kozinzo lwesakhiwo sokulungiswa kwangaphakathi kwe-intramedullary.

Kwiminyaka embalwa kamva, i-AO yajoyina i-trend of intramedullary nail development ngokuphuhlisa izikhonkwane ze-intramedullary ezifanayo (Umfanekiso 5)

Ngowe-1984, u-Weinquist et al. icetywe indlela eguquguqukayo, eyayikukuphucula ukuphiliswa kwesiphelo sokwaphuka ngokufaka imingxunya emikhulu yezikhonkwane zokutshixa, ukususa izikrufu zokutshixa ezimileyo, kunye nokuguqula imingxuma yezikhonkwane zokutshixa kwimingxuma yezikhonkwane embhoxo kuyilo lwangoku ngakumbi.

Injongo yendlela eguquguqukayo kukukhuthaza ukuphulukiswa kwe-fracture kunye nokuphepha i-bone nonunion ngenxa yomsebenzi osemva kwexesha.

Okwangoku, i-intramedullary nailing dynamics ilahlekelwe ngabaxhasi bayo njengendlela yokuzimela yodwa kwaye okwangoku isetyenziswa kuphela njengesisombululo esineendleko ezingaphezulu kunokutshintshwa okupheleleyo kwenkqubo yokulungiswa kwangaphakathi kunyango lwezaphulelo ezinganyangekiyo.

Kuphononongo lwe-biomechanical, uGimeno et al. inike ingxelo yokuba indawo yotshintsho phakathi kweendawo ezingafakwanga kunye nezifakwe kwisikhonkwane se-intramedullary kubangele ukugxininiswa koxinzelelo kunye nokusilela kotyando lokufakelwa kwangaphakathi kokulungisa.

Ukulungisa ezi ngxaki, uRussel noTaylor et al. yenzelwe isikhonkwane sokuqala esingafakwanga, esingadityanisiweyo se-intramedullary ngo-1986, sineziphumo ezanelisayo.

Ngeli xesha, ingxaki yezikhonkwane ezidityanisiweyo ze-intramedullary nayo yaqhubeka iqhubela phambili, kwaye njengoko sisazi namhlanje, ukudityaniswa nesikrufu ngomngxuma we-intramedullary ogrunjwe kwangaphambili yayiluyilo lweKlemm kunye neSchleman eJamani. Ukufakwa kwesikrufu kuya kukhokelwa yi-fluoroscopy yasimahla, enokuthi iveze ugqirha kwimithamo emininzi yemitha.

Namhlanje, le ngxaki isonjululwe ngenkqubo yokujolisa ekude ebandakanya itekhnoloji yokulandelela intsimi ye-electromagnetic, iteknoloji ye-fluoroscopically ekhokelwa yi-freehand, kunye nesikhokelo esichanekileyo sokufakela izikhonkwane.

1990s: Titanium intramedullary nail

Kwiminyaka elishumi eyalandelayo, isikhonkwane saseRussel-Taylor se-intramedullary siye sathandwa kakhulu kuluntu lwamathambo lwamazwe ngamazwe. Umgangatho wokhathalelo ngokucothayo waba ukubethelwa kwe-intramedullary kunye nokutshixa okumileyo kwezikrufu, njengoko kubonisiwe kwiziphumo zophononongo nguBrumback et al.

Kolu phononongo olulindelekileyo, iziphumo zichaze ukuba ukukhiya kuvelise iziphumo ezilungileyo kwiimeko ezininzi kwaye akuzange kudityaniswe nokungadibanisi nokuqhekeka.

Ukuqhubela phambili kwi-metallurgy kwakhokelela ekuveleni kwezikhonkwane ze-titanium intramedullary, ezisetyenziswa ngokubanzi kwishishini le-biomedical ngenxa yamandla abo, ukuxhathisa okulungileyo kokubola kunye ne-biocompatibility.

I-Alta intramedullary nailing system yayiyeyokuqala ekhoyo i-titanium intramedullary isikhonkwane, kwaye yamkelwe kakhulu luluntu lwezonyango ngenxa yeempawu zemishini ye-titanium, eyintsimbi eyomeleleyo kodwa engaphantsi kwesinyithi.

Nangona kunjalo, uncwadi lwangoku luyathandabuza malunga nokuba i-titanium yinto efanelekileyo yokulungiswa kwangaphakathi kunensimbi engenasici, ngakumbi ngenxa yeendleko ezongezelelweyo ezinxulumene nokusetyenziswa kwe-titanium.

Nangona kunjalo, iingenelo ezithile ze-titanium, ezifana ne-elastic modulus ekufutshane ne-cortical bone kunye ne-magnetic resonance imaging imaging, iyenza ibe lukhetho olunomtsalane.

Ukongeza, i-titanium lukhetho oluhle kakhulu xa kufuneka izikhonkwane ezincinci ze-intramedullary.

Iindlela zangoku

Emva kweempumelelo kunye nokungaphumeleli kwamashumi eminyaka adlulileyo, oogqirha bamathambo banamava amaninzi ngokubethelwa kwe-intramedullary.

I-Intramedullary nail fixation of femoral, tibial kunye ne-humeral fractures ibe ngumgangatho wokunyamekela kwiifractures ezininzi ezivaliweyo kunye nezinye iifractures ezivulekileyo. Iinkqubo ezintsha zokujolisa kunye nokubeka indawo zenze inkqubo yalula kwaye ikwazi ukuveliswa nakwabona oogqirha botyando abangenamava.

Iindlela zamva nje zibonisa ukuba i-titanium kunye nentsimbi yentsimbi zinemodyuli ephezulu kakhulu yokuqina kwaye uxinezeleko lufihla uxinzelelo olucaphukisayo olufunekayo ukuze kunyangelwe amathambo. Izinto ezintsha zebhayoloji ezinje ngealloyi zemagnesium, iialloys zeenkumbulo zemilo kunye nemathiriyeli enokuphinda ihlaziywe iyavavanywa kwiziko lemfundo.

Izikhonkwane ze-Intramedullary ezenziwe nge-carbon fiber-reinforced polymers kunye ne-elastic modulus ephuculweyo kunye namandla amakhulu okudinwa akhoyo ngoku. I-Magnesium alloys ine-modulus ye-elasticity efana ne-cortical bone kwaye i-biodegradable.

Izifundo zakutsha nje nguLi et al. baye babonisa inzuzo ebalulekileyo ekuphatheni i-osteoporotic fractures kwiimodeli zezilwanyana ezibangelwa ukudibanisa i-magnesium kunye ne-zoledronate yokugqoka ukulungiswa kwe-fracture, indlela enokuthi ibe yonyango lwe-osteoporotic fractures kwixesha elizayo.

Ukuqukumbela

Ukutyhubela iminyaka, ngophuculo olubonakalayo kuyilo lwezikhonkwane ze-intramedullary, ubuchule be-metallurgical, kunye nobuchule botyando, ukubethelwa kwe-intramedullary kuye kwaphuhliswa kwaba ngumgangatho wangoku wokhathalelo lwamathambo amaninzi amade kwaye iyinkqubo esebenzayo, encinci, kunye nenkqubo yokuveliswa kwakhona.

Nangona kunjalo, ngenxa yoyilo oluninzi lwe-intramedullary, ulwazi oluninzi lunqongophele malunga neziphumo zabo zasemva kokuhlinzwa. Uphando oluthe kratya luyafuneka ukumisela ubungakanani bohlobo lwezikhonkwane ze-intramedullary, iimpawu kunye neradius yegophe.

Siqikelela ukuba izinto ezintsha kwintsimi ye-biomaterials ziya kubangela ukuvela koyilo olutsha lwe-intramedullary nail.

Uzithenga njani ii-Orthopedic Implants kunye ne-Orthopedic Instruments?

Kuba I-CZMEDITECH , sinomgca wemveliso ogqityiweyo kakhulu wokufakelwa kotyando lwamathambo kunye nezixhobo ezihambelanayo, iimveliso ezibandakanya ukufakelwa komqolo, iinzipho ze-intramedullary, ipleyiti yokwenzakala, ipleyiti yokutshixa, i-cranial-maxillofacial, iprosthesis, izixhobo zamandla, izilungisi zangaphandle, arthroscopy, ukhathalelo lwezilwanyana kunye neeseti zezixhobo ezixhasayo.

Ukongeza, sizibophelele ekuqhubekeni siphuhlisa iimveliso ezintsha kunye nokwandisa imigca yemveliso, ukuze sihlangabezane neemfuno zotyando zoogqirha abaninzi kunye nezigulana, kwaye senze inkampani yethu ikhuphisane ngakumbi kulo lonke ilizwe lehlabathi lokufakelwa kwamathambo kunye nezixhobo.

Sithumela kumazwe ngamazwe, ukuze ukwazi qhagamshelana nathi kwidilesi ye-imeyile ingoma@orthopedic-china.com ngesicatshulwa samahhala, okanye uthumele umyalezo kwi-WhatsApp ukuze uphendule ngokukhawuleza + 86- 18112515727 .

Ukuba ufuna ukwazi ngakumbi, cofa CZMEDITECH ukufumana iinkcukacha ezithe vetshe.