18
Fixation of the cutting mask with threaded pins
Subsequently, secure the cutting mask to the femur with threaded pins of Ø 4.4 mm and then remove the rod, the concentric or eccentric positioner, the
insert positioner, the metaphyseal sleeve and the diaphyseal reamer.
Note:
It is recommended to insert the thread as far as possible, only leaving one or two threads outside the cortex to ensure that the system has optimal
fixation and stability. The pins have a reference slot which indicates the maximum depth to which the pins should be inserted to avoid problems
when extracting the diaphyseal reamer and the sleeve from inside the intramedullary axis.
If we are making a 12 mm distal recut, the fixation of this condyle will be unstable if we only insert the pin as far as the slot, because only the tip
of the pin will reach the bone. If it is inserted deeper, this will present an obstacle when removing the diaphyseal reamer and sleeve. Therefore, it
is recommended to initially insert the pin as far as the slot and, once the intramedullary components have been removed, finish inserting the pin
until it penetrates the threaded area of the bone.
Making femoral cuts
Fit the appropriate cutting insert for the size of the femur and use it to make frontal, rear and bevel cuts.
Note:
The cutting mask makes it possible to make subsequent
additional cuts at 4 and 8 mm.
To facilitate the identification and correspondence between
sizes of masks and their corresponding cutting inserts, the-
re are colour markers which also coincide with the colour
which will subsequently be used for the trial tibial insert for
the flexo-extension test.
Set 3.
Surgical Technique
Summary of Contents for Genutech CCK
Page 1: ...Surgical Technique Genutech CCK total knee revision system ...
Page 2: ......
Page 36: ...34 FEMUR Insertion of 70 mm stems in femur F 70 F 70 Surgical Technique ...
Page 37: ...35 Insertion of 70 mm stems in the femur greater intramedullary stability F 70 120 200 F 70 ...
Page 38: ...36 Insertion of 120 mm stems in femur F 120 F 120 Surgical Technique ...
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