balanSys REV – Extension Gap First: 3in1 –
31
Adopt the previously determined correct femur size
(p. 22, Fig. 38).
To position the cutting block of the 3in1 system
(71.34.0655 to 71.34.0659) correctly on the reamer,
introduce the offset sleeve insert of the 3in1 system
(71.34.0662) into the hole through the middle of the
cutting block. Note that this offset sleeve insert can
be used either for a left or a right knee, and must be
inserted rotated in the corresponding direction.
Remark
• For a left knee, the «L» mark on the guide
sleeve must correspond to the «Left» mark on
the cutting block.
• For a right knee, the «R» mark on the guide
sleeve must correspond to the «Right» mark on
the cutting block.
In the case of an offset stem, introduce the size 4 fe-
mur offset guide (71.34.0652) into the offset sleeve
insert in the cutting block of the 3in1 system. If no
offset stem is used, use the size 0 femur offset guide
(71.34.0651). The exact position will be determined at
a later stage.
In this example, a size 4 femur offset guide is used. If
any bone defects had to be compensated for at the
time of the distal resection by means of augmenta-
tion, the appropriate augmentation of the 3in1 system
(5 or 10 mm, 71.34.0670 to 71.34.0679) must be put
into place on the proximal surface of the cutting block
of the 3in1 system that is being used.
Fig. 56
Fig. 57
Surgical technique
Offset and rotation