EndoLab - Implant Testing Services Implant Testing

Femoral head torsion test ISO 7206-13

Normative References  



ISO 7206-13: Implants for surgery - Partial and total hip joint prostheses - Part 13: Determination of resistance to torque of head fixation of stemmed femoral components

PI-81: Determination of resistance to torque of head fixation of stemmed femoral components  


A modular fitting between ball and stem is subjected to torsion loading until movement occurs. Amongst others, the loosening torque is determined. Special care is necessary testing ceramic balls: Due to the high torsional moments, small flats may be required to fixate this component.  

Implant Testing - Femoral head torsion test ISO 7206-13 Femoral head torsion test ISO 7206-13