Surgival Genutech CCK, Surgical Technique

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In order to measure the interline, fit the lower edge of the interline sizing guide’s flange onto the ATT. As the average interline ranges approximately from
25 mm (Size 1: 23 mm, Size 2: 24 mm… Size 5: 28 mm) it is possible to determine the thickness of the tibial insert to be used in advance in order to
maintain the articular interline.
Note:
When it is necessary to perform an osteotomy of the TTA to make it possible to dislocate the patella, the height of this insertion will be marked on the
front side of the metaphysis so that measurements can be taken from this mark.
It is essential that the interline is located in the right place in order to ensure proper knee function.
Example:
If “a” is the height from the insertion of the patellar ten-
don with the ATT to the tibial osteotomy, and knowing that
the thickness of the tibial tray is approximately 4 mm and
the interline is approximately 25 mm from the insertion of
the patellar tendon with the ATT, we can conclude that the
thickness of tibial insert “I” to be used must be as follows
in order to maintain the interline:
Therefore, a 10 or 12 mm tibial insert would be used to
maintain the interline in its position.
Interline
Tibial Tray
Tibial Cut
1.5 Measuring of the interline
Set 2. Upper tray
Thickness of Insert:
(see image)