smith&nephew RT-PLUS Surgical Technique page 28

Excavate the femoral box with a thin, straight
osteotome and a luer along the outer limits
marked and prepared with the saw blade
(with the osteotome, the two lateral box cuts
are carefully posteriorely extended).
From anterior into the IM canal hole, the
narrow saw blade (or an osteotome) is intro-
duced for cutting the posterior cortical box
bone.
Important
To protect the important posterior soft tissues,
a Hohman is placed centered onto the
posterior condyle.
Cut off the upper bone edge to provide space
for the rounding from the patellar shield to
the box wall.
Note
Helpfully a "cross" can be prepared with the
saw for removing the femoral box. The re-
maining triangle bone is finally removed by
using a luer.
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