BIOMET VANGUARD XP, Руководство пользователя

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Figure 6 Figure 5
8
VANGUARD X P
Total Knee System
Patella Preparation
Patella Resection (cont.)
• Single peg patellar component
- Use the single peg patellar drill guide
(32-486520–32-486525) to locate the placement of
the central peg.
- Drill the central hole using the 5/16" Series A patellar
drill (32-347021 or 32-347022).
- Select a trial patellar component to optimize
coverage without increasing patellar thickness
beyond pre-resection height.
• 3-peg patellar component
- Place the appropriately sized 3-peg drill guide
(32-486530–32-486535) onto the resected patella
and use the 1/4" patellar drill (32-468470) to prepare
for the component pegs (Figure 5).
Option 2: Patella Milling
• Tilt the patella for patella preparation.
• Remove the osteophytes and peripatellar tissues down
to the level of the quadriceps and patellar tendon
insertion.
• Determine the patella thickness and resection amount
by using the patella calliper (32-486502).
• Size the patella using the mill bushings (32-486830–
32-486835) (Figure 6).
• Attach the size-specific bushing to the mill handle
(32-486800).