6
Fig. 6
Fig. 7
Step One
Drill Hole in Distal Femur
Guides are available for LT MED/RT
LAT or RT MED/LT LAT, with two
different rod lengths. The standard
length is 23cm (nine inches) long
and provides the most accurate
reproduction of the anatomical axis.
If the femoral anatomy is altered, as
in a femur with a long-stem total hip
femoral component, or with a femoral
fracture malunion, then use the
optional resection guide with a
10cm (four-inch) rod.
Using the Universal Handle,
insert the appropriate IM Femoral
Resection Guide into the femur
(Fig. 7). Control the rotation of
the guide as it approaches the
articular surface of the femur.
The posterior edge of the guide
should be parallel to the tibial
articular surface (perpendicular
to the tibial shaft) (Fig. 8). The
Without everting the patella, flex the
knee 20°-30° and move the patella
laterally. Choose the site for inserting
the IM Femoral Resection Guide
approximately 1cm anterior to the
origin of the posterior cruciate ligament
and just anterior to the intercondylar
notch in the distal femur. Use the 8mm
Femoral IM Drill or an awl to create the
hole for the guide. Hold the drill parallel
to the shaft of the femur in both the
A/P and lateral projections (Fig. 6).
Drill only the cancellous bone of the
distal femur.
Suction the canal to
remove intramedullary fat. This
will help reduce intramedullary
pressure during the placement
of subsequent guides.
The hollow diaphysis offers little
resistance to the insertion of the
intramedullary rod of the resection
guide. IM Femoral Resection
Fig. 8
goal is to be parallel to the cut
surface of the tibia after the tibial
cut is made. Flex or extend the knee
as necessary to properly position the
guide.
Make sure that the surface
of the resection guide is flush with
the condyles and no soft tissue
is impinged. Predrill and place a
Holding Pin on the posterior flange
of the IM Femoral Resection Guide.
