Smith & Nephew TC-PLUS Revision, Surgical Technique, Page: 53 / 98

53
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mplanting the tibial and femoral components
The tibial component is tapped in with the hammer bent
at 90°. Excess cement is carefully removed. While the
cement is
setting the implant components must be under
continuous pressure.
The tibial insert of the corresponding size must not
be placed until the cement has fully hardened.
Ultracongruent tibial inserts (
page 60 ) and PS inserts
( page 66 and 67 ) are available.
Important
Make sure that cement is placed between the
fin connection and stem connection when using tibial
blocks.
The femoral component is hammered using the
impactor. Here too continuous pressure must be
maintained and excess cement removed.
Important
Make sure that the posterior femoral condyles do not
come into contact with the tibial component when
impacting the femoral component. We recommend
covering the tibial component with a compress.
Implanting the Components
Mix the bone cement according to the respective manufacturer's instructions. Clean, wash
and dry the bone bed sufficiently. Modern cementing techniques using a vacuum
mixer and jet lavage are recommended.
The TC-PLUS™ Revision knee is used with cement, with the exception of non-
cemented stems. First cement the tibial component and then the femoral component.
Important
With sclerotic bone it is recommended to drill several holes using an Ø 3.2 mm drill.
This improves anchorage between the bone cement and the bone.
Ti6Al4V stems : The backs of the condyles and the box walls of the femoral
component are coated with cement. The back of the tibial component is coated with
cement (back of plateau and box). The Ti6Al4V stems are not cemented.
Important
When implanting Ti6Al4V stems, pay attention that the rotations alignments of the femoral
and tibial components correspond already when the stems are inserted to the
definitive implant positions.
This prevents unnecessary rib notches occurring in the IM
canal.
CoCr stems : The medullary plugs are accordingly placed deeper. It is recommended to
fill up the medullary cavities using a cement gun.