Orthopaedics
Knee
MEGASYSTEM-C®
The design of the modular Bone and Joint Revision System MEGASYSTEM-C® for tumor and revision surgery has been developed in collaboration with Prof. Dr. Capanna of the Centro Traumatologico Ortopedico in Florence.
Due to its high modularity, the system allows partial bone replacements both in the proximal and distal femur in small increments as well as a total replacement of the femur. For the knee joint components, the Endo-Model® SL® Rotational Knee is used in the MEGASYSTEM-C®.
The modularity of the system helps to successfully address intraoperative problems. Observation of biomechanical load and anchoring principles and the application of proven implant components successfully tested over a long period allow utmost safety of the system and thus good prospects for the surgical outcome.
• Maximum intraoperative flexibility using highly modular implant components, thus reducing costs for true custom-made implants
• System-integrated components compatible with standard implant systems such as the MP® Reconstruction Hip System and Endo-Model® Total Knee Joint Prosthesis System
• Knee joint components based on long-term clinical experience with the Endo-Model® Rotational Knee Prosthesis
• Coupling mechanics clinically tested over a long period
• Cementable and cementless stem components
• Length adjustment in 10 mm increments intraoperatively
• Microporous implant surfaces support bone ongrowth
• Easy to handle system-integrated instrumentation
Endo-Model® SL®
Development of the Endo-Model® SL® Rotational and Hinge Knee Prosthesis System dates back to the decades of experience with the Endo-Model® Rotational and Hinge Knee System and the corresponding modular implant version Endo-Model® – M.
The high modularity of the system allows the knee joint system to be used in difficult primary and revision indications (see indications). Incorporation with the implants of the MEGASYSTEM-C® extends the range of indications to the treatment of revisions with large bone defects and to tumor prosthetics.
Observation of biomechanical load and anchoring principles, as well as the already mentioned experience from the application of proven implant components successfully tested over a long period, allow utmost safety of the system and thus very good prospects for the surgical outcome. Special tibial washers made from UHMWPE or Tilastan® are obtainable for restoration of the joint line in cases of tumor or revision surgery.
- Flexibility using highly modular implant components.
- Adaptability through intraoperative selection between rotational and hinge version (no exchange of joint components necessary when adjusting the coupling mechanics even in the case of revisions).
- System-integrated through chamfer cut compatibility between the GEMINI® SL® and Endo-Model® SL® knee joint prostheses.
- Bone-sparing through reduced intramedullary unit dimensions.
- Anatomical due to valgus alignment (6°) of the intramedullary box.
- Anti-luxation effect through extension of the rotational pivot and use of the proven anti-luxation mechanism.
- Modularity through optional use of cementable and cementless extension stems.
- Compatible with implants of the MEGASYSTEM-C® and therefore applicable for severe bone defects.
LINK® Endo-Model Rotational Knee System
Revision Total Knee Arthroplasty often presents with problems of poor bone quality and/or bone loss with associated ligamentous compromise. Missing portions of the femoral condyles, ice cream cone-type tibial plateau deficiencies and deficiencies of the ligaments are all excellent indications of use of the LINK® Endo-Model Rotational Knee Prosthesis.
The femoral and tibial components for Endo-Model Rotational Knee System are packaged together and according to the size of the tibial component to be used in small, medium and large.
Important Information About the Endo-Model Rotational Knee System
- Allows physiological rotation with control
- In extension: Virtually no rotation
- In 120 Degrees of flexion:
- Outer Rotation = 50 Degrees
- Inner Rotation = 35 Degrees
- Hyperextension is a full 3 Degrees
- Flexion up to 165 Degrees
- Normal Valgus position is 6 Degrees
