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Figure 39
Figure 40
Figure 41
Option 1
– Extramedullary Referencing
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The tibial resection assembly has five parts: the
appropriate Tibial Resection Guide, the Ankle Clamp,
the Distal Assembly, the Proximal Rod and the Tibial
Adjustment Housing. These are assembled first
(See Assembly 6).
Note:
The Tibial Adjustment Housing is available in
0° slope (posterior stabilized) and 3° slope (cruciate
retaining).
Flexion/Extension Alignment
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The posterior long fixation pin of the Proximal Rod
is partially seated in the proximal tibia to stabilize the
assembly. Place the ankle clamp around the ankle
and unlock the locking switch.
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Flexion/Extension alignment is correct when the long
axis of the assembly parallels the mid-coronal plane
of the tibia. Flexion/Extension alignment can be
checked by verifying that the long axis of the
assembly is parallel to the fibula.
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Varus/Valgus Alignment
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Medial/Lateral offset can be adjusted by pushing the
bronze button (1) and sliding the assembly medially
until the shaft intersects the center of the tibia.
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Once triaxial alignment is achieved, release the
bronze button.
Tibial Slope Adjustment
Note:
If the Proximal Rod is parallel to the tibia, the
slope is 0° or 3° depending on which Tibial Adjustment
Housing is used.
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Tibial slope can be adjusted by pressing the bronze
button (2).
Rotational Alignment
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Rotate the entire assembly to ensure that the base
of the assembly is aligned with the center of the
ankle. The center of the ankle is generally in line
with the second metatarsal.
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Fix the entire assembly in place by striking the
proximal end of the Proximal Rod with a mallet,
securing the two fixation pins.
Once alignment is confirmed, set the bronze locking
switch on the Distal Assembly to the locked position.
Triathlon Knee System
Surgical Protocol
Summary of Contents for Triathlon Knee System
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