5
SURGICAL TECHNIQUE
MPFL RECONSTRUCTION
Femoral Site Preparation
4a
4b
Make a second, smaller incision at the femoral attachment site, located in the saddle area between
the posterior border of the medial femoral epicondyle and the adductor tubercle. Place a 2.4 mm
Drill-Tipped Passing Pin in the desired location in the femoral epicondyle. Confirm Passing Pin
placement with fluoroscopic imaging.!
4c
With forceps placed between layers two and
three, pull the patellar sutures out through the
femoral incision. With the knee at 20of flexion,
clamp the sutures around the Passing Pin so
that the sutures are taut but neither tensioned
nor lax. Perform anatomometric testing in
extension and flexion. Reposition the Passing
Pin if necessary.
4d
Once the desired location has been verified,
drill over the Passing Pin with a Cannulated
Reamer 1 mm larger than the graft size. Drill to
a depth of 25 mm, read directly off the
lasermarks of the Reamer. Refer to Appendix
A: Eclipse Sizing Guide for graft, bone tunnel,
and Implant sizing information.!
Pearl #3. During anatomometric testing with increasing flexion, the sutures should become lax. If the sutures tension
while increasing flexion, the Passing Pin is positioned too proximal on the femur. In extension, the sutures should tension
only slightly. Ensure that the patella is not over-tensioned or tilted medially throughout the full range of motion. !