A Multilevel Hypermobilty Lumbar Model allows palpable motion from two lumbar levels. Using our one level L4-5 Hypermobility lumbar model, this multilevel model has the added anatomical features of a stiffer L5-1 disc and sacrum. The L5-1 disc includes a central annular tear to show herniation under compressive load. Extra features include disc innervation and neoinnervation to inner annular damage with interposed disc herniation. To aid in the visual patterns of nuclear movement, reflective particles have been randomly dispersed within the nucleus to see inner annular stress. With a hypermobile L4-5 and a normal L5-S1 disc, patients can now experience spinal motion that includes hypermobility.
Understanding directional preference can be clearly taught to the patient in the the prescription of safe exercises and/or in the discussion of pain generators.
- Clear L4 with simulated vasculature
- Painted facets (hyaline cartilage, blue; perichondrial vascularization, red)
- Thin walled L4-5 annulus to allow greater movement under load
- Randomly distributed reflective intranuclear particles
- Opaque L5
- Thicker walled L5-S1 annulus
- Red L5-S1 nucleus pulposus
- Central annular tear in L5-S1 to allow herniation under load
- Opaque Sacrum