Figure 34
>
Remove the Femoral Impactor/Extractor and
Impaction Handle and assess the fit of the Single-
Use PS or CR Femoral Trial . Care must be taken to
ensure that all of the osteophytes beyond the end of
the posterior femoral condyles are removed .
• Cruciate Retaining Knee: Attach the 1/4
”
Peg
Drill to the Universal Driver and create the
Modular Femoral Distal Fixation Peg holes .
The Posterior Osteophyte Removal Tool or
any curved osteotome may be used to remove
posterior osteophytes .
• Posterior Stabilized Knee: If the Modular
Femoral Distal Fixation Pegs are to be used,
use the 1/4
”
Peg Drill, attached to the Universal
Driver to prepare the distal femoral peg holes .
>
The assessment of the fit of the Single-Use Femoral
Trial is similar for both the CR and PS implants .
The appropriate size femoral implant trial is applied
to the Femoral Trial Impactor/Extractor . The
Femoral Trial is then impacted onto the prepared
distal femur and the Impactor/ Extractor is
removed . The fit of the Femoral Trial is checked to
ensure that there is a flush fit .
>
The Triathlon CR knee has integral medial and
lateral femoral pegs . Therefore, if a CR implant
is chosen, the 1/4
”
peg drill is assembled to the
Universal Driver and distal fixation peg holes are
drilled through the holes in condyles of the Femoral
Trial .
>
The cemented posteriorly stabilized femoral
component does not come with integral pegs but
rather modular capability . Should the surgeon
choose to use distal fixation pegs, the holes are
drilled in a similar fashion . Once this has been
accomplished, the trial may be removed . At this
point, the tibia, if not already prepared, must
be prepared for the tibial implant . Keeping the
Femoral Trial in place helps assure adequate
exposure, but it may be removed for tibial
preparation if desired .
22
Femoral
Preparation
Triathlon
®
Knee System
Single-Use Instruments Surgical Protocol
Tibial
Preparation
Содержание Triathlon
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