Knee joint machining: Precision for long-lasting implants
The highest demands on material, finishing and surface quality — from the tibial to the femoral component.
The knee joint is one of the most complex and stressed joints in the human body. Knee implants must withstand the highest loads and at the same time allow maximum mobility. The three main components—the tibial component, the knee joint spacer and the femoral knee joint—must work perfectly together to ensure stable, long-lasting and low-friction function.
Thanks to specialised machining technologies, materials such as titanium, cobalt chrome and high-performance plastics can be processed with the highest surface quality and dimensional accuracy.
Your benefits at a glance
- Optimum stability and load-bearing capacity — precise fits ensure secure fixing and long durability.
- Reduced friction and wear resistance — high-precision surface processing enables optimum joint movement.
- Efficient production and process reliability — state-of-the-art processing technologies guarantee maximum dimensional accuracy and quality.
Precise machining for long-lasting knee implants
State-of-the-art production technologies and specialised machining processes ensure the highest dimensional stability and durability of the knee implants.
Knee implants consist of:
a. Tibial component: The lower leg part of the implant, usually made of metal, which is attached to the top of the shinbone (tibia).
b. Knee joint spacer: An insert or spacer, usually made of plastic, that sits between the tibia and the femoral component and acts as a buffer to allow smooth movement.
c. Femoral knee joint: The thigh section of the implant attached to the end of the thigh bone (femur). This part is usually made of metal and forms the upper joint surface of the knee joint.
Knee implant with tibial component (A), spacer (B) and femoral component (C)
Stability and long-lasting function.
Characteristics of knee joints
- Biocompatible materials
High-performance alloys and plastics for maximum compatibility and durability.
- High-precision production
Multi-axis machining for precise geometries and optimum fit.
- Optimised surfaces
Reduced friction for improved sliding capability and minimised wear.
- Modular design
Precisely coordinated components for stable joint function.
- Anatomical geometry
Design for natural movement and even load distribution.
"Tibial component" machining
The lower leg portion of the implant, typically made of metal, is fixed to the top of the shinbone (tibia). Precise milling and turning techniques are required to ensure an exact fit and long-lasting stability.
Production Technology – Solutions for the medical industry, page 18/19 and 20/21
"Knee joint spacer" machining
High-precision sliding surface production
The spacer, usually made of high-performance plastics, is positioned between the tibial and femoral components and ensures smooth movement in the joint. Processing requires high-precision milling processes for exact thickness dimensions and optimum sliding capability.
Production Technology – Solutions for the medical industry, page 22/23/24
"Femoral knee joint" machining
Perfect surface quality for smooth mobility
The thigh portion of the implant, usually made of titanium or cobalt chrome, forms the upper joint surface. Processing requires the highest surface quality and precision for optimum mobility.
Production Technology – Solutions for the medical industry, page 26/27
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Production Technology – Solutions for the medical industry
Get a comprehensive insight into the latest solutions for the medical technology industry — from components to materials to machining technologies.
