Academic LxH Dynamic Disc Spine Model

Product Description Academic LxH Dynamic Disc Spine Model – Lumbar Disc Herniation & Nerve Compression Teaching Model This newly designed herniated intervertebral disc lumbar model features a see-through, clear L4 vertebra to visualize an annular disc tear.  The spine model dynamically extrudes a red nucleus under manual compression, dynamically squeezes it, and migrates through an outer annulus disruption, demonstrating disc herniation. This protruding disc model stands out with its realistic two-part design, offering a dynamic representation.  Features include: Crafted from an actual human specimen origin, with an identical scale and geometric bony shape Circumferential (diffuse) disc bulge Superimposed disc protrusion Limacon-shaped annulus (seen through clear L4) L5 superior endplate visualization with endplate pores and red disruption fracture Peripherally exposed calcified endplate Elastomeric white articular cartilage on the facet surface Subchondral bone exposed with hyaline fibrillation Bone-colored L5 White superior endplate matching the color of the articular cartilage New nerve complex designed with natural geometry, including the nerve root diameters, DRGS, and Dura Mater Flexible and dynamic herniating (or prolapsed) nucleus pulposus. This is achieved through a realistic 2-part intervertebral disc with 6 degrees of freedom. Nuclear migration upon manual compression through a torn annulus fibrosus explains pain generators under load. Right posterior-lateral radial and circumferential (concentric) fissure Transparent L4 Vasculature in the L4 vertebral body (red) Facet subchondral vascularization (red) Facet tropism (L5 inferior) See model usage videos. This protruding disc model is an exceptional anatomical teaching and patient education tool. It provides a dynamic understanding of the human spinal motion segment, featuring geometrically identical L4 and L5 lumbar vertebrae and, importantly, a viscoelastic, gelatinous nucleus pulposus enclosed by a stiffer annulus fibrosus. It accurately demonstrates the range of motion and the interplay among the vertebrae, intervertebral discs, and facet joints. As a result, it excels at depicting herniation through a complete annular tear, extruding the nucleus under manual compression and retracting it upon release. The Academic LxH Dynamic Disc Model is useful across various fields, making it an indispensable tool for chiropractors, physiotherapists, spine surgeons, neurosurgeons, personal injury lawyers, teachers, and educators. It is invaluable for anatomical teaching, biomechanics, patient education, student teaching, and spinal anatomy classes. Optional Lumbar Nerve Complex The optional nerve complex includes: Asymmetrical nerve branchingDorsal root ganglion anatomyRealistic nerve positioningMechanical interaction with disc pathology This allows the demonstration of radiculopathy mechanisms that are not possible with traditional static models.