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Vanguard
®
ID Total Knee
Surgical Technique
Figure 1
Figure 2
Perpendicular Resection
Mechanical Axis
Anatomic
Valgus Angle
Preoperative Planning
Assess bone stock and potential ligament instability
and the anatomical axis with 36 inch long standing
A/P X-rays.
Measure valgus angle (angle between anatomic and
mechanical axis) to assure the distal femoral cut is
perpendicular to the mechanical axis (Figure 1).
Estimate femoral component size using lateral view
X-ray.
Note:
Confirmation of the appropriate size
component intraoperatively is critical for normal
kinematics.
Incision
The Vanguard ID Knee utilizes the Vanguard XP Total
Knee Instrumentation, which is also designed for
standard surgical approaches (Figure 2).
Ensure that the patella tendon tibia interface is released
so the patella can easily sit in the lateral gutter of the
knee. Take care to not release medial collateral ligament
(MCL) during initial exposure.
Note:
If multiple scars from previous surgeries exist,
evaluate skin incision placement and elements of
scarring, which may decrease soft tissue mobility.
