smith&nephew RT-PLUS Surgical Technique page 9

The blocks have to be assembled to the femoral and tibial components with screws and can
then be cemented on the tibia, respectively on the femur.
Please see the available sizes in the implant table (from page 54 ff).
Femoral and tibial blocks
The femoral and tibial blocks are manufac-
tured from CoCrMo alloy.
In order to compensate different femoral and/
or tibial bone defects, there are distal femoral
blocks available in heights of 5 mm, 10 mm
and 15 mm, posterior femoral blocks in heights
of 5 mm and 10 mm and proximal tibial blocks
in heights of 5 mm, 10 mm and 15 mm.
The same femoral blocks are used for the
medial as for the lateral condyle of the
femoral component. The same tibial blocks,
except height of 15 mm, are used for the
medial as for the lateral condyle of the
tibial component.
Cemented stem
The femoral and tibial components can be
intramedullary anchored in the bone by
cemented conical stems, made of forged
CoCrMo alloy.
Available in lengths 95 mm, 120 mm and
160 mm.
Cementless stems
The femoral and tibial components can also be
stabilized into the bone by using non cement-
ed cylindrical stems, made of extruded Ti
alloy. These stems are not suitable for primary
anchorage; therefore, they are not designed for
osseointegration.
A wide stems range enables an optimum
adaptation to different indications. They are
available in various diameters (Ø 10, Ø 12,
Ø 14, Ø 16, Ø 18 and Ø 20 mm) and lengths
(95 mm, 120 mm, 160 mm and 200 mm) in order
to ensure optimum anchorage, even with a
variety of femoral or tibial geometries.
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