Fig. 3From: Superior bone fixation of conical compared with hemispherical trapezial cup design: an experimental radiostereometry studyA The motorized Mark-10 test stand mounted with a 5 mm head-neck segment to apply a compression load on the cup during testing. B The DR RSA set-up with two ceiling-mounted x-ray tubes used for recording stereo-radiographs of the cup and bone-markersBack to article page