Both lumbar disc replacement and spinal fusion are surgical procedures used to treat chronic back pain caused by damaged spinal discs, but they work in different ways.
Spinal fusion involves permanently joining two or more vertebrae together using bone grafts and surgical hardware. Once the bones heal, the treated segment no longer moves independently, which can reduce flexibility in that area of the spine.
Lumbar disc replacement involves removing the damaged disc and replacing it with an artificial disc designed to function like a natural spinal joint. This allows the treated segment to continue moving while helping to relieve pain.
Key differences include:
- Motion Preservation: Disc replacement is designed to maintain movement in the spine, while fusion eliminates movement at the treated level.
- Flexibility: Patients who undergo disc replacement may retain more natural bending, twisting, and range of motion.
- Treatment Approach: Fusion stabilizes the spine by joining vertebrae together, whereas disc replacement restores function by replacing the damaged disc.
The best procedure depends on your specific condition, symptoms, and overall spinal health. Your spine surgeon can help determine which option is most appropriate for you.
