smith&nephew RT-PLUS Surgical Technique page 26

Preparing the femoral box (IM)
Note
In order to improve support for the Hohman,
we recommend preparing the femoral box
after tibial preparation.
Important
This application is performed when bone tissue
is not available to ensure good instrument
support (especially in the anterior bone area
and after explantation of a prosthesis). In
case of good distal and anterior bone sup-
port, the EM femoral box preparation is pre-
ferred (see page 29).
The A/P femoral cutting block revision is
removed and the femoral resections can be
checked.
Slide the trial stem already used with the trial
stem extension (Ø 8 mm) into the femoral IM
canal again using the modular handle and now
detach the modular handle.
Slide the box saw guide IM positioning device
(size 2 or sizes 4–10) onto the extension up
to the distal cut with the box saw guide po-
sitioner (observe size). It is important for the
box saw guide to be fl ush with the cut
surfaces.
Note
When using distal femoral blocks, mount the
appropriate blocks on the femoral cutting
block. Observe the appropriate thickness
(5 mm, 10 mm or 15 mm).
The side handles can be attached to the box
saw guide positioning device.
Note
If required (absent anterior bone tissue) ad-
just rotation with the aid of the side handles,
reference to the femoral epicondyle.
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