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KNEE JOINT IMPLANTS 

Since the first knee joint replacement nearly 50 years ago, continuous improvements in devices and surgical techniques have led to numerous breakthroughs in technology. 

The large number of different types of knee endoprosthetics with regard to fitting type, fixation, bearing couple, design and degree of coupling require defined test series for the approval process. Facilities in Orthoteck lab enable us to conduct these test with high quality.



Bone Screw Torsion Testing Apparatus
Static Frame
Hip Joint Simulator
Fatigue Frame
Customized Testing Equipments
Biomaterial Wear Frame
Wear and fatigue tests on knee joint implants





Test standard overview in the field of knee joint implant

  • Wear Test


ISO 14243-1: Implants for surgery -- Wear of total knee joint prostheses

Part 1:Loading and displacement parameters for wear-testing machines with load control and corresponding environmental conditions for tests.
ISO 14243-2: Implants for surgery -- Wear of total knee joint prostheses Part 2: Methods of measurement.
ISO 14243-3: Implants for surgery — Wear of total knee joint prostheses, Part 3: Loading and displacement parameters for wear testing machines with displacement control and corresponding environmental conditions for test.  





  • Fatigue Test of Baseplate/Bearing Fixation/Tray


ASTM F 3140:Standard Test Method for Cyclic Fatigue Testing of Metal Tibial Tray Components of Unicondylar Knee Joint Replacements

ISO 14879-1:  Implants for surgery - Total knee-joint prostheses - Part 1: Determination of endurance properties of knee tibial trays

ISO 21536:  Non-active surgical implants - Joint replacement implants - Specific requirements for knee-joint replacement implants
ASTM F1800:  Standard Practice for Cyclic Fatigue Testing of Metal Tibial Tray Components of Total Knee Joint Replacements
ASTM F2083: Standard Specification for Total Knee Prosthesis



 


  •  Petella Specification


ASTM F1672: Standard Specification for Resurfacing Patellar Prosthesis.




  •   Constraint Test


ASTM F1223: Standard Test Method for Determination of Total Knee Replacement Constraint.





  •  Mobile Bearing Dislocation  Test


ASTM F2722: Standard Test Method for Evaluating Mobile Bearing Knee Tibial Baseplate Rotational Stops.

ASTM F2723: Standard Test Method for Evaluating Mobile Bearing Knee Tibial Baseplate/Bearing Resistance to Dynamic Disassociation. 

ASTM F2724: Standard Test Method for Evaluating Mobile Bearing Knee Dislocation.

ASTM F2083: Standard Specification for Total Knee Prosthesis








TESTING FRAME & SIMULATOR

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