new product DYNAMIC DISK DESIGNS INTRODUCES STENOSIS/DEGENERATIVE MODEL Dynamic Disk Designs introduces its newest model, the LxD (D for degenerated) spine model. This carefully thought-out design will help doctors be even more effective in their clinical practices when the words degeneration/osteoarthritis/stenosis crop up. This new LxD model was carefully chosen and crafted from an abnormal specimen with features of progressive and ad-vanced degeneration in mind. The LxD features: Dynamic soft spinal stenosis – A thickened ligamentum flavum has been designed in line with the literature, dem-onstrating its presence adjacent more so with the moder-ate-severe facet arthropathy. You can also see there is a shortened pedicle, further narrowing the lateral recess for the exiting nerve root. With a constructed paracentral disc bulge and the thickened ligamentum flavum the AP diame-ter narrows even more when the model is dynamically com-pressed in extension. Patients will finally understand what it means to have nerve compression due to lateral and central stenosis. They will also understand why extension increases symptoms while flexion often decreases symptoms. A compressed and degenerated disc – As discs degener-ate, the annulus and nucleus become less distinct. In this model, the disc is stiffer, showcasing significant disc height loss. It has been designed with a blend of properties from the annulus and nucleus. If you already have the LxH model, patients can now see and feel the difference between this degenerated disc and one that has good disc height. Fur-thermore, they can understand why a healthy disc has bet-ter range of motion. Mild, moderate, and severe facet arthropathy – Now one model showcases all levels of degeneration. This is not only convenient for the doctor but also valuable when explain-ing degenerative wear patterns to the patient. They can clearly see the negative effects of asymmetric spinal align-ment in the development of OA. In this L4 and L5 model, the right and left superior articular processes of L4 demonstrate a beautiful comparison. Other bony features include: osteophytes, lateral body wedging of L5, IVF narrowing and a bony canal of about 13 millimetres. For more information, or to purchase the LxD and other spinal models, please visit www.dynamicdiscdesigns.com. 16 • Canadian ChiropraCtor | September 2011 www.canadianchiropractor.ca