Total Knee Arthroplasty
TKA stem – the hybrid solution for the use of Aesculap revision systems in primary cases
The continuous improvement of the software for navigated TKA is closely designed in partnership with OrthoPilot® users.
In the severest cases of knee disease TKA stem is designed for performing more efficient primary knee treatment with our Aesculap revision prostheses in less time than conventional technique focusing on the mechanical axis, not soft tissue management.
TKA stem Features
- Tibia first and femur first option
- Jointline-navigation
- Reamer-navigation
- Supports all our implants: Columbus® Revision, e.motion® PS/Revision, EnduRo® Revision
- The camera can be positioned either on the ipsilateral (same) side or as usual on the contralateral (opposite) side
Software Elements
Reamer navigation
With the use of revision implants with stem extension it is possible via a navigated handle to prepare the implant bed for the stems exactly under navigation control. This is possible when using stem extensions in the femur as well as in the tibial shaft.
Distal Femoral resection
The position of the cutting block can be adjusted, according to:
- Varus/valgus
- Anterior/posterior slope
- Distal resection height
- Jointline
- Distal Implant thickness
The cutting result is checked at this stage as well.
Jointline
To assist during the selection of the distal resection height, the distance from the cutting jig to the so-called jointline, as well as the thickness of the distal femoral implant is shown in the selected size. The height of the hinge line in this case corresponds to the most distal point on the distal condyle.
Femur rotation
The setting of the femur rotation can be adjusted with the help of:
- Dorsal condyles,
- Epicondyles (optional),
- Whiteside line
- A/P-position to avoid ventral notching.
Tibial resection
The position of the femoral resection can be adjusted with the cutting block according to:
- Varus/valgus
- Anterior/posterior tibial slope
- Medial and lateral height of resection
After the resection, the position and alignment of the final cutting plane is confirmed with a measuring plate.