25 TM tibial components were fixed press-fit by 2 hexagonal pegs (TM group) and 25 Ti tibial components were fixed press-fit and by 4 supplemental screws (Ti group).
However, in our study screw fixation of the Ti tibial component did not prevent implant migration at 1 and 2 years, which was in contrast to the trabecular metal implant that was fixed press-fit without supplementary screw fixation and stabilized at approximately 3 months.
In one group, the cement was pressed into the bone surface using the fingers (surface cementation), and the modular stem was fixed by press fitting; in the other group, cement was used both on the bone surface and around the metaphyseal bone near the modular stem (metaphyseal cementation), and the modular stem was fixed by press fitting, as in the surface cementation group.
The MOM group received a ReCap Hip Resurfacing System (Biomet) consisting of a cemented cobalt-chromium femoral component and a cementless titanium, non-hydroxyapatite-coated, closed pore porous-coated acetabular component with a cobalt-chromium core fixed by press fit.
The tibial bone plug was tapped into the femoral tunnel and fixed with press-fit.
For larger structural defects at the tibial plafond, medial and lateral malleolus mono- or bicortical autografts were used and fixed by press-fit, or with screws or plates.
Deficient non-weight-bearing areas on the tibia or walls of the malleoli were reconstructed with mono- or bicortical iliac crest blocks of appropriate size, and fixed by press-fit or with screws or plates.
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