Bony details: sacrum, L5, and L4 inferior epiphyseal ring. Soft tissues: endplates, annulus pulposus, ligamentum flavum and nucleus pulposus. Pathology details: L5-1 right posterior-lateral radial tear to demonstrate nuclear extrusion (with granulation tissue) and L4 inferior endplate fracture to demonstrate superior nuclear translation…both generated under loading conditions. Ligamentum flavum at 4mm thickness and available for realistic puncture force feedback, for epidural training. See full page video here.