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Construction-conditioned rollback in total knee replacement: fluoroscopic results

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Firstly, the way of implementing approximatively the initial rollback of the natural tibiofemoral joint (TFJ) in a total knee replacement (AEQUOS G1 TKR) is discussed. By configuration of the curvatures of the medial and lateral articulating surfaces a cam gear mechanism with positive drive can be installed, which works under force closure of the femoral and tibial surfaces. Briefly the geometric design features in flexion/extension are described and construction-conditioned kinematical and functional properties that arise are discussed. Due to a positive drive of the cam gear under the force closure during the stance phase of gait the articulating surfaces predominantly roll. As a result of rolling, a sliding friction is avoided, thus the resistance to motion is reduced during the stance phase. Secondly, in vivo fluoroscopic measurements of the patella tendon angle during flexion/extension are presented. The patella tendon angle/ knee flexion angle characteristic and the kinematic profile in trend were similar to those observed in the native knee during gait (0°–60°).
Rocznik
Strony
35--42
Opis fizyczny
Bibliogr. 26 poz., il.
Twórcy
autor
autor
autor
autor
autor
autor
autor
autor
  • Department of Trauma Surgery, Plastic and Reconstructive Surgery, University of Göttingen, Germany, martin.wachowski@web.de
Bibliografia
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  • [26] PANDIT H., GILL H.S., MURRAY D.W., private communication.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPBA-0012-0042
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