The strain distribution in the lumbar anterior longitudinal ligament is affected by the loading condition and bony features: An in vitro full-field analysis
Fig 1
Left: overview of the testing setup showing (a) the DIC cameras, (b) the DIC light system, (c) the optoelectronic cameras and (d) the specimen. Right: detail of the spine segment. The white-on-black pattern is visible. Also shown is the three-dimensional coordinate system used by the different measurement tools: the transverse plane of the spine segment corresponds to the xy-plane of the coordinate system, the sagittal plane to the xz-plane and the frontal plane to the yz-plane. The X-axis is forward, the Y-axis left and the Z-axis cranial.