cadera / hip - Active Congress.......

JUEVES / THURSDAY
248
- False.
2) Improved function - Not accurate.
3) Improved ROM - False.
4) Improved long term survivorship - unproven.
5) Reduced polyethylene wear - not proven
in in vivo studies.
6) Improved patellofemoral tracking - inaccurate.
7) “Surgical forgiveness” - actually more
challenging.
In addition, MB TKA may have additional
complications not found in fi xed bearings
such as bearing subluxations, dislocations,
and insert fractures.
Two recent clinical studies have suggested
possible functional benefi t which may be implant
design specifi c. Ball et al (2006) found
with the Scorpio MB TKA, improved stair
climbing ability. Delport et al (2006) with a
kinematic analysis found Biomet performance
MB TKA reproduces internal rotation of the
tibia more closely during fl exion.
MB TKA theoretical advantage possibly may
be very design specifi c, but the majority of
literature does not prove clinical benefi t associated
with MB TKA. Based on current
review MB TKA is not worth it.