Componente femurale necimentate – Avenir®

  • Tija Avenir Müller este o tija dreapta necimentata realizata din aliaj de titan cu structura macrosuprafata si acoperita in intregime cu hidroxiapatita.
  • Este caracterizata printr-o sectiune transversala rectangulara.
  • Colul femural permite o gama de miscare dincolo de conditia fiziologica a unui sold normal sanatos.


Optimizarea designului unui implant bine-cunoscut si testat, revizuirea gamei sale de produse, incorporarea celor mai recente cunostinte tribologice si dezvoltarea unui instrumentar de mare precizie si modular au fost obiectivele in timpul crearii tijei Avenir Müller.

Pentru a obtine o blocare antero-posterioara a implantului, indiferent de forma femurului, sectiunea transversala plana s-a dovedit intotdeauna a fi o modalitate eficienta pentru a oferi stabilitatea de rotatie.
Coroborarea formei tijei M. E. M. cu autoblocare si o sectiune transversala plana defineste un concept demonstrat al implantului.
Succesul ancorarii secundare a tijei femurului este optimizata prin
acoperirea completa cu hidroxiapatita.

Tija Avenir Müller a fost conceputa de un grup de chirurgi, toti utilizatori pe termen lung de acest tip de tija si, prin urmare, calificati sa optimizeze gama de produse din acest implant privind forma, dimensiunile incrementurilor sale, structura suprafetei sale si instrumentarul sau.

Tija Avenir Müller permite toate combinatiile actuale de suprafete de contact cum ar fi metal sau ceramica / polietilena, ceramica / ceramica, metal / metal si, in special, capetele LDH™.

Gama larga de produse de tija Avenir in versiunea standard si lateralizata permite un numar mare de indicatii care trebuie acoperite.
Tija Avenir Müller poate fi utilizata in aproape toate cazurile in care nu există contraindicatii pentru o tija necimentata.

Indicatii
• Coxartroza
• Artrită reumatoida
• Fracturi ale colului femural
• Artroze, necroze ale soldului
• Artropatie degenerativa
• Fracturi trohanterice instabile la
pacientii foarte batrani
• Clasificare Paprosky de gradul 1 sau 2
• Necroze avasculare

Contraindicatii
• Anumite cazuri de displazie
• Indicatii care necesita o tija cimentata
• Toate cazurile unde nu este posibila o stabilitate primara a implantului
• Clasificare Paprosky de gradul 3 sau 4

Descriere

  • Tija Avenir Müller este o tija dreapta necimentata realizata din aliaj de titan cu structura macrosuprafata si acoperita in intregime cu hidroxiapatita.
  • Este caracterizata printr-o sectiune transversala rectangulara.
  • Unghiul CCD este de 135° pentru intreaga gama de produse.
  • Colul femural permite o gama de miscare dincolo de conditia fiziologica a unui sold normal sanatos.
  • Rezistenta mecanica a acestui implant indeplineste cerintele stricte cu privire la testele mecanice de oboseala. Conul 12/14 permite multe combinatii tribologice cu cupele acetabulare Zimmer (a se vedea lista pe www.productcompatibility.zimmer.com).

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AVENIR 1
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Ten-year survival of the MS-30 matt-surfaced cemented stem
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Risk factors for aseptic loosening of M ller type straight stems
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Finite element analysis of the effect of cementing concepts on implant stability and cement fatigue failure
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avenir-hip-system-surgical-technique
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0725.1-GLBL-en Avenir Hip System_Brochure_FINAL