PSS 5.5 &6.0 Posterior Spinal Inter-Fixation System
Chiyambi cha Zamalonda
Zotetezeka, zosavuta komanso zogwira mtima kwambiri za Posterior Pedicle zomwe zimagwiritsidwa ntchito pokonza mkati mwa msana
Kapangidwe ka ulusi wolakwika
Kuchepetsa kutseka torque
Mphamvu yokhazikika yokulirapo
Kuchita bwino kwamakina
Ubwino wa Zamalonda
Low mbiri wononga mpando kapangidwe
Kukwiya kochepa kwa minofu yofewa
Chigawo chachikulu cha mafupa
Mapangidwe amitundu iwiri
Kukonza mwamphamvu
Mining screw dissection
Kuyika mwachangu
Malangizo Achipatala
Zizindikiro zazikulu za Pedicle Fixation
Kusakhazikika kowawa kwa msana: post-laminectomy spondylolisthesis.zowawa pseudoarthrosis.
Kusakhazikika kothekera: spinal stenosis.degenerative scoliosis.
Kuthyoka kosakhazikika.
Kukulitsa kulumikiza kwamtundu wa anterior strut: chotupa.matenda.
Kukhazikika kwa ma osteotomy a msana.
Ubwino wa Pedicle Screw Fixation
The pedicle imayimiranso mfundo yolimba kwambiri yolumikizira msana ndipo motero mphamvu zazikulu zingagwiritsidwe ntchito pamsana popanda kulephera kwa mgwirizano wa fupa-zitsulo.
Pedicle screw fixation pakali pano ndi imodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri pakukhazikika kwa thoracic ndi lumbar spine.Ngakhale kukonza magawo ndi mawaya, mabandi ndi mbedza kumagwirabe ntchito yofunikira, ubwino wa biomechanical wa screw screw unachititsa kuti pakhale kuwonjezeka kwa kugwiritsa ntchito pedicle screw fixation pakapita nthawi.Kupatula apo, zomangira za pedicle zimapereka zotsatira zachipatala zapamwamba poyerekeza ndi njira zina za zida za msana.Komabe, mafupa a osteoporotic "in vitro" kukhazikika kofananako komanso kwanthawi yayitali kunkawoneka pakati pa zomangira za pedicle ndi ndowe ya laminar yokhazikikanso pa lamina yokhala ndi zomangira komanso zomangira za cortical zidawonetsedwa kuti zili ndi mphamvu yofananira mu mafupa a osteoporotic. poyerekeza ndi zomangira za pedicle.
Direction ntchito
Mapangidwe osamveka bwino, Kuteteza ulusi woyenda, Kuyika kosavuta.
Multi-axial screw's universal direction + -18 °, Kuchepetsa kukhudzika kwa misomali, kuyika kosinthika.
pamene screw imayikidwa, fracture imakanizidwa bwino ndi ulusi, zomwe zidzawonjezera kukhazikika kwa fracture.
