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Adult Reconstruction
intermediate
X-Type

TKA Implant Design - Constraint Levels and Polyethylene

Total Knee Arthroplasty

A registrar is presenting a case conference on total knee arthroplasty implant selection. The discussion focuses on constraint levels, bearing surfaces, and polyethylene optimization. The consultant asks about the principles guiding implant choice and the evolution of modern TKA design. Regarding total knee arthroplasty implant design:

Mark each as TRUE or FALSE

A

The constraint spectrum progresses from cruciate-retaining (CR) to posterior-stabilized (PS) to cons...

B

Highly cross-linked polyethylene (HXLPE) reduces wear by approximately 90% compared to conventional ...

C

Mobile-bearing designs have demonstrated superior clinical survival compared to fixed-bearing design...

D

According to AOANJRR data, posterior-stabilized designs are the most commonly used in Australia at a...

E

The post-cam mechanism in PS designs provides femoral rollback and prevents posterior tibial subluxa...

Answer the questions to see explanations

Click T (True) or F (False) for each option