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The ligament tension in flexion and extension is checked with
spacers. The tibial spacers («9», «11», «13», «15», «17», «19» and
optional «21» for the TC-PLUS™ PS Revision only) represent the
full tibial height ( tibial component and tibial insert ). The metal
femoral condyle spacer, which represents the height of the
femoral component, is attached to the tibial spacer.
Important
When using augmentation blocks the corresponding spacer
blocks must be fixed to the spacer. Note the corresponding
thickness ( «5 mm», «10 mm» or «15 mm» . These can be fixed
either on the tibial side or on the femoral side.
The flexion and extension gaps are checked by inserting the
spacer in the joint gap. If necessary further release or resection
are performed.
Important
If distal and posterior femoral augmentation blocks of different
thicknesses are used, using the femoral trial component is
recommended rather than the femoral condyle spacer.
The mechanical axis can be checked by inserting the axial
alignment rod in the handle.
To release the spacer blocks, a long pin can be inserted in the
hole and used as a lever.
The two bone pins in the tibia are then removed.
As guidance for the vertical tibial augmentation block cut,
two bone pins (length 75 mm or 100 mm are inserted into
the two proximal holes level with closed saw slot. The
vertical cut is performed between the two pins to the depth
of the augmentation block.
Important
If the femoral / tibial revision cutting block is distally or
proximally relocated ( purpose of thicker or thinner bone
resection ), this is moved to the right (± 2 mm) or parallel
(± 4 mm). Should the relocation be moved to the right, the
vertical cut should be performed external to the right pin
rather than between the pins.
The femoral / tibial revision cutting block is now removed.
Controlling the joint gaps
Содержание TC-PLUS Revision
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