Fig. 2From: Investigation of geometric deformations of the lumbar disc during axial body rotationsa The virtual dual fluoroscopic system that mimics the actual fluoroscopic system, which was used to reproduce the in vivo vertebral positions; b Subject protected by custom-made lead clothing; c 3D models of the vertebrae from L3 to L5 during left-right axial rotation. LT-left twist, RT-right twistBack to article page