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a base plate with an offset tibial stem attachment.
56%
411/735
a bone ingrowth surface on the augment.
8%
61/735
a nonstemmed tibial base plate.
3%
22/735
allograft bone instead of metal augments.
15%
112/735
bone cement to smooth the outline of the proximal medial tibia.
16%
118/735
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The problem with this reconstruction is the medial protrusion of the base plate. The use of a base plate with an offset stem can prevent the protrusion and thus the impingement and pain. Allograft bone or smoothing the outline with cement would be just as prominent and likely to cause pain. An ingrowth surface may improve soft-tissue attachment but would still leave the implant protruding medially and likely to cause pain. A nonstemmed tibial base plate would lead to less medial protrusion but at the expense of a smaller area for load carriage on the proximal tibia.
3.2
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