Maparamita emifananidzo anonyanya kushandiswa pakuongorora kuputsika kweradius yedistal anowanzo sanganisira volar tilt angle(VTA), ulnar variance, uye radial height. Sezvo kunzwisisa kwedu kwehunhu hwedistal radius kwakawedzera, mamwe maparamita emifananidzo akadai seanteroposterior distance (APD), teardrop angle (TDA), uye capitate-to-axis-of-radius distance (CARD) akakurudzirwa uye akashandiswa mukurapa.
Maparamita ekufungidzira anoshandiswa zvakanyanya pakuongorora kuputsika kwerutivi rwedivi redhiramu anosanganisira: a：VTA；b：APD；c：TDA；d：CARD。
Zvizhinji zvezviyero zvemifananidzo zvakakodzera pakutyoka kwechikamu chekunze kwechikamu chekunze che ...
Kumucheto wetibia, kana paine kutyoka kweposterior malleolus nekubuda kwetalus, nzvimbo yekubatana inoumba ma arcs matatu: Arc 1 ndiyo nzvimbo yepamberi yetibia iri kure, Arc 2 ndiyo nzvimbo yekubatana yeposterior malleolus fragment, uye Arc 3 ndiyo nzvimbo yepamusoro petalus. Kana paine fragment yekutyoka kweposterior malleolus inoperekedzwa nekubuda kwetalus, pakati pedenderedzwa rinoumbwa neArc 1 pamusoro pejointi repamberi rinoratidzwa sepoindi T, uye pakati pedenderedzwa rinoumbwa neArc 3 pamusoro petalus rinoratidzwa sepoindi A. Daro riri pakati penzvimbo mbiri idzi iTAD (Tilt After Displacement), uye kana displacement yakakura, TAD value inowedzera.
Chinangwa chekuvhiya ndechekuwana kukosha kweATD (Tilt After Displacement) kwe0, zvichiratidza kudzikira kwehunhu hwejoini.
Saizvozvowo, panyaya yekutyoka kwemapfupa kwaVolar Barton:
Zvidimbu zveparutivi pemabvi zvakabviswa zvishoma zvinoumba Arc 1.
Chidimbu chemwedzi chinoshanda seArc 2.
Chikamu chemusana che radius (pfupa rakajairika risina kutyoka) chinomiririra Arc 3.
Imwe neimwe yemakona matatu aya inogona kutorwa semadenderedzwa. Sezvo chikamu chemwedzi nechikamu chemapfupa chevolar zvakaparadzaniswa pamwe chete, Denderedzwa 1 (rakaita yeyero) rine pakati paro neDenderedzwa 2 (rakaita chena). ACD inomiririra daro kubva pakati apa kusvika pakati peDenderedzwa 3. Chinangwa chekuvhiya ndechekudzosera ACD ku0, zvichiratidza kudzikira kwemuviri.
Mukurapa kwakapfuura, zvave zvichigamuchirwa zvakanyanya kuti kudzika kwejoini pamusoro pe<2mm ndiyo nzira yekuderedza. Zvisinei, muchidzidzo ichi, ongororo yeReceiver Operating Characteristic (ROC) curve yemaparamita akasiyana ekufungidzira yakaratidza kuti ACD yaive nenzvimbo yepamusoro pasi pecurve (AUC). Ichishandisa cutoff value ye1.02mm yeACD, yakaratidza 100% sensitivity uye 80.95% specificity. Izvi zvinoratidza kuti mukuderedza kutsemuka, kuderedza ACD kusvika mukati me1.02mm kungave kuri chiyero chakanaka.
kupfuura mwero wekare we <2mm wekubatanidza pamusoro pechitsiko.
ACD inoita kunge ine kukosha kwakakosha pakuongorora mwero wekuputsika kwemapfupa emukati memapfupa ane chekuita nemajoini. Pamusoro pekushandiswa kwayo pakuongorora kuputsika kwemapfupa etibial plafond uye kuputsika kwedivi redhiramu sezvambotaurwa, ACD inogonawo kushandiswa pakuongorora kuputsika kwegokora. Izvi zvinopa vanachiremba chishandiso chinobatsira pakusarudza nzira dzekurapa uye kuongorora mhedzisiro yekuderedza kuputsika kwemapfupa.
Nguva yekutumira: Gunyana-18-2023
