Lumbar spinal fusion may help relieve chronic low back pain, spinal instability, nerve compression, and conditions such as spondylolisthesis when conservative treatments are no longer effective. Dr. Seth Grossman, our board-certified orthopedic spine surgeon, offers advanced, minimally invasive techniques to help restore function and quality of life.
Restore Stability to Your Lower Back
Lumbar spinal fusion is a surgical procedure that permanently joins two or more vertebrae in the lower back to eliminate painful movement and improve stability. It is commonly recommended for conditions such as degenerative disc disease, spondylolisthesis, spinal instability, or nerve compression when nonsurgical treatments have not provided lasting relief. Bone graft material and specialized implants support the fusion as the bones gradually heal into one solid segment.
What Does Lumbar Spinal Fusion Treat?
Lumbar spinal fusion is commonly recommended for conditions that cause instability in the lower back, chronic pain, or compression of nearby spinal nerves. When nonsurgical treatments no longer provide adequate relief, this procedure may help restore stability. Common conditions treated with lumbar spinal fusion include:
- Degenerative disc disease causing painful spinal instability
- Spondylolisthesis with vertebral slippage
- Pars fractures or defects (spondylolysis)
- Herniated lumbar discs associated with instability
- Facet joint arthritis affecting spinal stability
- Recurrent nerve compression requiring stabilization
- Certain spinal deformities involving the lumbar spine
What Happens During Lumbar Spinal Fusion?
Lumbar spinal fusion is performed under general anesthesia. Depending on your diagnosis, Dr. Grossman accesses the affected spinal level using the most appropriate surgical approach, such as TLIF, PLIF, or ALIF. The damaged disc material is removed, and any bone or tissue compressing nearby nerves is carefully cleared to relieve pressure.
Once the disc space has been prepared, a bone graft and an interbody cage are placed between the vertebrae to encourage the vertebrae to fuse. Dr. Grossman then secures the treated spinal segment with specialized instrumentation, including screws and rods, to provide immediate stability while the fusion heals. After surgery, you are monitored in the recovery area before beginning a guided rehabilitation plan to support healing and restore mobility.
Benefits of Lumbar Spinal Fusion:
- Stabilizes painful movement between affected vertebrae
- Relieves pressure on compressed spinal nerves
- Reduces chronic lower back pain in appropriate candidates
- Helps improve leg pain, numbness, and sciatica symptoms
- Restores spinal stability after degenerative changes or injury
- Improves spinal alignment in selected cases
- Supports better mobility and everyday function
- Helps prevent further vertebral slippage in certain conditions
- Provides long-term structural support for the affected spinal segment
Types of Lumbar Spinal Fusion
TLIF (Transforaminal Lumbar Interbody Fusion)
TLIF approaches the spine through one side of the lower back, allowing the surgeon to remove the damaged disc, relieve pressure on the compressed nerves, and stabilize the spine. This technique often minimizes disruption to surrounding tissues and can frequently be performed using minimally invasive techniques, depending on your condition.
PLIF (Posterior Lumbar Interbody Fusion)
PLIF accesses the spine directly through the back to remove the damaged disc and insert bone graft material and interbody cages between the vertebrae. This advanced surgical technique provides excellent visualization of the spinal canal and may be recommended for certain cases requiring extensive decompression and stabilization.
ALIF (Anterior Lumbar Interbody Fusion)
ALIF reaches the lumbar spine through the front of the abdomen, avoiding the back muscles altogether. This approach allows placement of a larger interbody implant, helping restore disc height and spinal alignment while stabilizing the affected vertebrae. Additional posterior instrumentation may be recommended when appropriate.
Schedule Your Consultation Today
Dr. Seth Grossman is a board-certified orthopedic spine surgeon and Active Fellow of the American Academy of Orthopedic Surgeons (FAAOS), known for delivering personalized, patient-first spine care. He always explores conservative treatment options first and utilizes minimally invasive and robotic-assisted techniques only when surgery is recommended. If you are struggling with persistent lower back pain or spinal instability, schedule a consultation to learn whether lumbar spinal fusion is right for you.
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