Fig. 3
From: Effect of different loads on facet joint motion during lumbar lateral bending in sitting position
Schematic diagram of the process of matching the lumbar spine model of 2D-3D through the software. a. import the X-rays acquired by the two C-arms of F1 and F2 into Rhinoceros 5, b. draw the boundary of the lumbar spine in the software, c. import the 3D model reconstructed in Mimics software into Rhinoceros 5, d. adjust the 3D model in the F1 and F2 perspectives until the vertebral body and 3D model in the background overlap. At this point, the movement distance and rotation angle of lumbar facet joints can be measured in the software