EndoLab - Implant Testing Services Implant Testing

Knee implants
all procedures accredited

Knee Constraint Test - ASTM F1223Knee Constraint Test - ASTM F1223 Dislocation Mobile Bearing - ASTM F2724Dislocation Mobile Bearing - ASTM F2724 Knee Contact Pressure Test - PI-17Knee Contact Pressure Test - PI-17 Tibial Component Finite Element Analysis - ASTM F3334Tibial Component Finite Element Analysis - ASTM F3334 Tibial Tray Fatigue Test - ISO 14879-1/ ASTM F1800Tibial Tray Fatigue Test - ISO 14879-1/ ASTM F1800 Patella specification - ASTM F1672Patella specification - ASTM F1672 Knee surface analysis - ISO 7207-2Knee surface analysis - ISO 7207-2 Knee wear test - ISO 14243-1/3Knee wear test - ISO 14243-1/3 Fatigue Test under High Flexion - ASTM F2777Fatigue Test under High Flexion - ASTM F2777 Fatigue Test Baseplate/Bearing Fixation - ASTM F2723Fatigue Test Baseplate/Bearing Fixation - ASTM F2723 Fatigue Test Baseplate/Bearing Fixation under Torsional Loading - ASTM F2722Fatigue Test Baseplate/Bearing Fixation under Torsional Loading - ASTM F2722 Knee loading profiles - ASTM F3141Knee loading profiles - ASTM F3141 FEA knee femoral component - ASTM F3161FEA knee femoral component - ASTM F3161 Unicondylar tibial tray fatigue test - ASTM F3140Unicondylar tibial tray fatigue test - ASTM F3140 Knee Condyle Fatigue Test - ASTM F3210/ PI-73Knee Condyle Fatigue Test - ASTM F3210/ PI-73 Durability performance patellofemoral joint - ISO 14243-5Durability performance patellofemoral joint - ISO 14243-5 Stemmed femoral knee component fatigue test - PI-53Stemmed femoral knee component fatigue test - PI-53 Specific Requirements for Knee-joint Replacement Implants - ISO 21536Specific Requirements for Knee-joint Replacement Implants - ISO 21536 Test of Modular Knee Implants - ASTM F1814Test of Modular Knee Implants - ASTM F1814 Particular requirements for joint replacement implants - ISO 21534Particular requirements for joint replacement implants - ISO 21534 Knee Specification - ASTM F2083Knee Specification - ASTM F2083

Knee Contact Pressure Test - PI-17

Normative References  



PI-17: Determination of Total Knee Implant Contact Pressure

ASTM F2083: Standard Specification for Knee Replacement Prosthesis

ASTM F1672: Standard Specification for Resurfacing Patellar Prosthesis

Pressure distribution and pressure levels influence the wear of total knee replacements. Using pressure films, the contact area, as well as the amount of pressure (in MPa), can be determined. We have developed a computerized calibration method to achieve reproducible results while avoiding the disadvantages of pressure films. An individual calibration is performed for every test series. Digital image processing is used to analyse the results.
This test evaluates the pressure distribution and total contact area between the femoral component and tibial insert or between the femoral component and the patella insert of a total knee replacement system under different flexion angles and loads. These results help to develop optimized geometries.  


Implant Testing - Knee Contact Pressure Test - PI-17 Knee Contact Pressure Test - PI-17