Medacta GMK Sphere - Cutting Block Positioning

9
12.
To measure the size of the femur:
1. The stylus should contact the anterior ridge of the lateral
femoral cortex.
2. The posterior plates should be in contact with both the
medial and lateral posterior femoral condyles.
The size can be read on the front of femoral sizer.
13.
The position of the sizer can be refined by selecting the size
of the femur using the anterior stylus.
14.
4.2 4IN1 CUTTING BLOCK POSITIONING
Option 1: Posterior Pegs
Once the size has been established, drill through the
dedicated peg holes, indicated in blue on the picture below,
on the femoral sizer to prepare for the posterior pegs on the
4in1 block.
15.
Femoral sizer holes

Parallel positioning holes (Posterior Referencing)

4in1 peg drilling holes (Posterior Referencing)

Epicondylar axis reference holes

Fixation holes
CAUTION
While drilling, ensure that contact between the femoral
sizer and the distal resection remains flush and intact.