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2.5 Verification of flexo-extension stability
Once the cuts have been made, spacers are used to check the looseness of the system and the alignment of the limb using the corresponding supple-
ments in extension and flexion.
To achieve stability, bilateral supplements are placed on the distal femur at 4, 8 or 12 mm on the femoral spacer (yellow piece) until it stabilises in
extension, or by increasing the thickness of the tibial spacer (blue piece) 2 by 2 mm, bearing in mind that, in both situations, whenever possible you
must compensate the increased thickness with the supplements on the femur to avoid increasing the thickness of the tibial polyethylene inserts, as
this thickness will have been established in order to maintain the position of the interline.
For example:
· If the necessary increase is 2 mm, the thickness of the tibial insert must be increased by 2 mm, because the Genutech CCK system does not have
2 mm femoral supplements.
· If the increase is 4 mm, 4 mm bilateral distal supplements are placed on the femur.
· If the increase is 6 mm, a tibial insert which is 2 mm bigger and 4 mm bilateral distal supplements are placed on the femur.
· Etc…
Femoral recutting mask
If, after checking the stability of the joint at flexion and extension it is necessary to make an additional distal femoral recut to release ligamentous
tension, there is a femoral recutting mask which makes it possible to make cuts at a depth of +2 mm, in addition to providing a set of slots at +4, +8
and +12 mm which are designed to delay the cuts to house future supplements from the distal cutting of the femur.
Set 2: Lower tray
Surgical Technique
Set 2. Lower tray
Содержание Genutech CCK
Страница 1: ...Surgical Technique Genutech CCK total knee revision system ...
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Страница 36: ...34 FEMUR Insertion of 70 mm stems in femur F 70 F 70 Surgical Technique ...
Страница 37: ...35 Insertion of 70 mm stems in the femur greater intramedullary stability F 70 120 200 F 70 ...
Страница 38: ...36 Insertion of 120 mm stems in femur F 120 F 120 Surgical Technique ...
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