Zotsatira za ma saw blade geometry pa kuyambitsa ming'alu ndi kufalitsa pa HTO lateral cortical hinges

High tibial osteotomies (HTO) amagwira ntchito yofunika kwambiri pakukonza ndi kuchiritsa kwa njira zina za mafupa. Komabe, hinge yofooka imakhala ndi chiopsezo chachikulu chakulephera. Kafukufukuyu akufuna kufufuza ngati geometry ya m'mphepete mwa tsamba la macheka imakhudza kuyambitsa ming'alu kapena kufalikira pa hinge, komanso ngati ma geometries ena odula amatha kuchepetsa ngoziyi.

Zida ndi njira:

Njira yomaliza idapangidwa pogwiritsa ntchito transversely isotropic elastic bone properties. Ma geometries atatu odula kwambiri (makona amakona, mawonekedwe a U, ndi mawonekedwe a V) adafanizidwa. Macheka a 1.27 mm wandiweyani adadulidwa, ndikusiya hinge yopingasa ya 1 cm. Katundu adayikidwa kuti atsegule osteotomy kwa sekondi imodzi. Mayesero awiri adachitidwa, imodzi popanda kuyambitsa ming'alu ndipo ina yotsetsereka yotsetsereka ya 15 °, kuti awone kuchuluka kwa kupsinjika kwa m'deralo ndikuwerengera mphamvu yotulutsa mphamvu ya hinge.

Zotsatira:

Poyerekeza popanda kuyambitsa ming'alu, mawonekedwe a rectangular saw blade geometry akuwonetsa kupsinjika kwapafupi kwambiri komweko. Komabe, poyerekezera ndi kuyambika kwa crack, geometry yooneka ngati U inasonyeza kupsinjika kwapafupi kwambiri kwanuko ndi kutsika kwambiri kwa mphamvu zotulutsa mphamvu. Izi zikutanthauza kuti mawonekedwe a U-mawonekedwe a geometry sangathe kuyambitsa ndi kufalitsa ming'alu pazitsulo zam'mbali za cortical.

Zokambirana/

Ngakhale kuti phunziroli limagwiritsa ntchito makina a makompyuta ndipo lili ndi malire ake, limasonyeza kuti mawonekedwe a U-mapeto a geometry ndi othandiza kwambiri kuchepetsa chiopsezo cha kuyambitsa ming'alu kapena kufalitsa chifukwa cha kuchepa kwa mphamvu zake. Kupeza uku kumathandizira malingaliro athu oyambilira ndikulimbitsa kufunikira koganizira zakusintha kwa geometry munjira za HTO.

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Ndondomeko Yobwezera ndi Kubweza

Kubweza ndalama kuyenera kukhala kofunikira, makasitomala ali ndi udindo wobweza ndalama zotumizira. Pambuyo polandira zinthuzo, ndalamazo zidzabwezeredwa moyenera.

Pomaliza, phunziroli likuwunikira ntchito yofunika kwambiri yochepetsera ma geometry pakuchita bwino kwa tibial osteotomies. Posankha kudulidwa kwa mawonekedwe a U, madokotala a mafupa amatha kuchepetsa chiopsezo cha kuyambitsa ming'alu kapena kufalitsa, zomwe zimathandiza kuti pakhale zotsatira zabwino za odwala komanso kupambana kwathunthu kwa njirayi.

Zotsatira za ma saw blade geometry pa kuyambitsa ming'alu ndi kufalikira pa HTO lateral cortical hinges ndizofunikira kuziganizira popanga njira za mafupa. Werengani kuti mudziwe zambiri za momwe mitundu yosiyanasiyana ya macheka ingakhudzire kukhulupirika kwa fupa panthawi ya opaleshoni.