Similar migration for medial congruent and cruciate-retaining tibial components in an anatomic TKA system : a randomized controlled trial of 60 patients followed with RSA for 2 years
Background and purpose — There is an ongoing debate regarding the appropriate level of constraint in primary TKA. To provide increased stability and better kinematics, more resembling a natural knee, a medial congruent (MC) tibial insert has been introduced. To investigate potential impact on implant migration, we evaluated the cemented Persona TKA, randomizing between MC and cruciate-retaining (C
