42
Milling
Mount the patellar bushing onto the patellar
clamp with the ratchet.
Select the patellar reamer to match the corres-
ponding patella size. Depending on the select-
ed anchoraging technique, mill briefl y (“onlay”
technique) or countersink by 3 mm to 5 mm
(“inlay” technique ). Milling down to the stop
results in a depth of 5 mm.
Note
Patellar implants with a height of 10 mm are
recommended as standard. Implants with a
height of 8 mm are available as an alternative
for thin patella.
Drill anchoring holes
Using the patellar drill guide and the patellar
drill with stop, prepare the anchoring holes
for the pegs.
Trial reduction
Patellar trials are available for trial reduction.