I. Secundum num posterius cruciatis ligamentum conservatur
Secundum num posterius cruciatum ligamentum conservetur, in primaria artificialis genu replacement prosthesis potest dividitur in posterior cruciatum ligamentum replacement (posterius stabilitati, PS) et posterior cruciatum retention (cruiatus retention, cr). In recent years, the tibial plateau of these two types of prostheses have been designed with different degrees of conformity and width of the central column according to the stability of the joint, the function of the ligament and the concept of the surgeon, so as to improve the stability of the joint and improve the kinematic performance.
(I) features in Cd et PS Proseses:
In crustulo prosthesis conservat posterius cruciatis ligamentumgenu iuncturamet reduces numerum chirurgicam gradus; Vittit adhuc resection de femoris condylus et conservat os massa; Theoretically, potest crescere flexura stabilitatem, redigendum paradoxical anterior displacement, et consequi retrorsum volvens. Adjuvat tueri proprioception.
In PS prosthesis utitur cam-columna structuram reponere functio ipsius crucis in consilio, ita ut femoris prosthesis potest advolvit retro in flexura actiones. Per operationem, inFemoral IntercondylarOsteotomy non requiritur. Ob remotionem de posterior cruciata ligamentum, flexion flexura est maior, posterior decursu facile et ligamentum statera simplicior et rectius.
(II) relativa indicia CR PS prostheses:
Most aegris subeunda primaria totalis genu arthroplasty can utor aut in crat prosthesis aut PS prosthesis, et arbitrium ex prosthesis pendeat maxime in patientes estote in conditione et medicus est experientia. Autem, cr prosthesis est magis idoneam ad aegris cum relative normalis posterius cruciatum ligamentum munus, relative mollis iuncturam hyperplasia, et minus gravibus iuncturam deformitatem. PS prostheses can exsisto late in maxime primaria totalis genu supplet, inter aegris cum gravibus hyperplasia et deformitas. In aegris cum gravibus Osteoporosis aut os defectibus, intramedullary longus virgas potest requiri, et collateralis ligamentum Dysfunction potest requiri. Usus restrictiva spacers.
II. Fixum platform et mobile Platform Prosthesis
Artificialisgenu iuncturam prosthesisPotest dividitur in certum platform et mobile platform secundum nexum modum Polyethylene Gasket et metallum Tibial Tray. Fixum Platform Prosthesis est polyethylene component fixum ad Tibialis Plateau per densis mechanism. Polyethylene component mobile Platform prosthesis potest movere in Tibialis Plateau. Insuper et formatam mobile iuncturam cum femoris prosthesis, et polyethylene spacer etiam concedit quaedam gradus est motus inter Tibialis Plateau et Tibialis Plateau.
Fixum Platfefesis prosthesis gasket est clausum in metallum bracket, quae firmum et fideles, et magis late usus est. Geometries de fixation spacers ut variantur late ex manufacturer fabrica ut par eorum unicum femoris prosthesis et amplio desideravit kinematics. Potest etiam facile mutata est restrictiva shim si requiritur.
Post tempus: Sep 10-2022
