ISO 14242-1

ASTM F1820

Disassembly forces of modular acetabular devices

ASTM F1875

Fretting corrosion testing of modular implants – Femoral stem-head interface

ASTM F2009

Modular connection disassembly test

ASTM F2068 (PI-98)

Requirements for femoral prostheses - Metallic implants

ASTM F2345

Femoral head fatigue test

ASTM F2580

Fatigue test

ASTM F2582

Impingement test

ASTM F2979

Bearing surface characterization of retrieved hard-on-hard hip prostheses

ASTM F2996

FEA non-modular hip femoral stem

ASTM F3018

Guide for assessment of hard-on-hard articulation THR devices

ASTM F3047M

High demand hip wear testing

ASTM F3090

Fatigue test of acetabular devices

ASTM F3446

3D frictional torque measurement of total hip joint prostheses

ISO 11491

Impact resistance femoral heads

ISO 14242-1

Hip wear test

ISO 14242-1

Third body wear test based on ISO 14242-1

ISO 14242-4

Microseparation test

ISO 21534

Particular requirements for joint replacement implants

ISO 21535

Hip range of motion

ISO 21535

Specific requirements for hip-joint replacement implants

ISO 7206-1

Classification and designation of dimensions

ISO 7206-10

Femoral head compression test

ISO 7206-12

Deformation test for acetabular shells

ISO 7206-13

Femoral head torsion test

ISO 7206-2

Hip surface analysis

ISO 7206-4

Fatigue test

ISO 7206-6

Fatigue test

ISO 7206-8

Fatigue test

PI-11

Insert compression test

PI-3

Luxation test

PI-58 (ISO 7206-8)

Fatigue test

PI-87

FEA non-modular hip femoral stem - neck region

PI-99 (ASTM F2091)

Standard specification for acetabular prostheses

Hip wear test

Normative References

ISO 14242-1: Implants for surgery – wear of total hip prostheses – Part 1: Loading and displacement parameters for wear-testing machines and corresponding environmental conditions for tests

ISO 14242-2: Implants for surgery – wear of total hip prostheses – Part 2: Methods of measurement
 

The hip joint simulator developed and built at EndoLab® can test 2×3 specimens simultaneously (plus two soak controls). The specimens are oriented in an anatomically correct position, and the resulting hip joint force is applied via the cup. Consequently, the direction of the force vector is constant relative to the cup and moves relative to the head. All three in-vivo angular displacements are simulated: flexion/extension, abduction/adduction and internal/external rotation.
You can see the simulator moving in this short video.

The specimens are assembled under laminar flow conditions and sealed in capsulated single test chambers to prevent contamination. The test fluid’s temperature and fluid level are controlled continuously throughout testing. The wear of the components is determined gravimetrically. If requested, an analysis of the wear debris according to ISO 17853 can be conducted.  

  

Parameters

ParametersISO 14242
force curvedouble-peak according to PAUL
force is fixed relative tocup
force maximum3.0 kN
frequency1.0 Hz
cup inclination „L“ according to ISO 14242 -130° (corresponds to an in-vivo inclination of 45°)
inclination cup-ball
flexion-extension+25/-18°
abduction-adduction+7/-4°
rotation+2/-11°
test fluidcalf serum
temperature37°C
cycles5 million
inspection cycles0.5 million, 1 million, 2 million etc.

Your contact person

Jason Steffens, M.Sc.

Head of Tribology, Head of FEA