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Dynamic Stabilization
New Technology Promises Non-fusion Alternative to Treating Low Back and Leg Pain
Dynamic stabilization is a surgical procedure in which a device comprised of external spacers is attached to either side of the affected vertebra. The device stabilizes the joints, helping to keep the vertebrae in a more natural position while leaving the spine itself intact. Made of flexible materials, the device permits a controlled range of bending, straightening and twisting movement in the affected joints.
The procedure gives some patients a surgical option that allows them to maintain some flexibility and function, while reducing pain. Spine surgery more commonly eliminates pain by reducing motion and flexibility. Lumbar fusion surgery, a common procedure for low back pain or degenerative disease, fuses adjacent spinal discs together in a procedure that frequently reduces back pain, but also reduces the flexibility and motion of the spine and sometimes may transfer additional stress to discs above and below the fused discs.
Dynamic stabilization may be appropriate for patients with spinal stenosis, spondylolisthesis or painful disc degeneration. Spinal stenosis is a condition where compressed nerves cause symptoms of pain, numbness and tingling in the legs. Spondylolisthesis (commonly known as "slipped disc") is a condition where excessive or abnormal movement of the vertebrae causes pain in the low back or legs.
The Dynesys System®, manufactured by Zimmer Spine, Inc., has been approved by the U.S. Food and Drug Administration (FDA) for dynamic stabilization. The device is comprised of titanium alloy screws and external spacers made of surgical polyurethane (a flexible plastic tubing) surrounding a polyethylene (nylon-like) cord. Once in place on both sides of the affected vertebrae, the dynamic "push-pull" relationship between the spacer and the cord stabilizes the joint.
Dr. Kitchel has been trained and is currently performing dynamic stabilization procedures using the Dynesys® device. As with any major surgery, dynamic stabilization is not appropriate for everyone and there are possible complications. To evaluate your candidacy for dynamic stabilization, call Orthopedic Spine Associates at (541) 393-0100 to schedule an appointment.
For more information on dynamic stabilization and the Dynesys System®, please visit www.zimmerspine.com and search for the keyword "Dynesys".