Lumbar vertebra anatomical model L4-L5

intervertebral discfor teachingstenosis

The Hybrid Split Dynamic Disc Model was designed with the busy doctor in mind, allowing a side by side comparison of normal and degeneration. With a midsagittally cut hybrid split lumbar vertebra and disc, dynamically demonstrate many comparative features to allow patients to understand quickly and efficiently. This is a marrying of the Professional LxH Lumbar Model and the Stenosis/Degenerative Lumbar Model with the added features of degenerative innervation. Details included on the Stenosis Degenerative Half: Reduced disc height (20 degrees annular fibre angle) Thicker annular wall View lateral window into disc innervation Innervation deep into the disc as far reaching as the nucleus Multiple annular inner fissures Kidney shaped posterior inner annulus Disc bulge encroaching into lateral recess Red facet arthropathy without blue hyaline…palpable difference to contralateral smooth facets Vertebral body height loss with osteophytes Simulated calcified endplate pores Endplate fracture Narrowed spinal canal FULLY DYNAMIC WITHOUT HERNIATION Details included on the Professional LxH Half: Good disc height View lateral window to show outer innervated annulus 30 degree anular fibres from the horizontal and an additional exposed layer showing -30 degrees in the next inner layer Annular innervation (minimal penetration into nucleus…significant contralateral comparison) One radial annular fissure to match up with the herniating nucleus under load Cancellous bone Polished facets and blue painted hyaline