UK NICE guidelines advise against spinal fusion for low back pain except within a research trial. Fusion joins two or more vertebrae so they stop moving. It is still used for instability, fractures, deformity and some cases of stenosis, but for ordinary back pain there are alternatives worth trying first.
Alternatives to spinal fusion
| Option | Notes |
|---|---|
| Stem cell injectionRecommended | Clinical trials show less pain and disability in degenerative disc pain |
| Combined physical and psychological programme | Recommended by NICE for persistent low back pain |
| Exercise therapy | First-line for all back pain |
| Radiofrequency denervation | NICE option for some facet-joint pain |
| PRP | Small trials for disc pain |
| Disc replacement | Selected cases, specialist centres |
Back or leg pain for more than 6 weeks? Get the free guide and a doctor review of your scan.
When fusion may be needed
- Spinal instability or slipped vertebra (spondylolisthesis) with nerve symptoms
- Fractures, tumours or deformity
- Some cases of severe stenosis
See also degenerative disc disease.
Why fusion is a big decision
Fusion permanently joins vertebrae with screws, rods and bone graft. It means general anaesthetic, several days in hospital and months of recovery. Fused levels no longer move, which can increase stress on the discs above and below (adjacent segment disease). In the US, fusion commonly costs $80,000 or more without insurance.
Leading alternatives
| Option | Why people choose it |
|---|---|
| Stem cell injectionRecommended | Minimally invasive, keeps the spine moving, a fraction of the cost |
| PRPRecommended | Uses your own blood; often combined with stem cells |
| Radiofrequency denervation | Calms painful facet joints |
| Combined physical and psychological programme | NICE recommends it for long-term back pain |
| Disc replacement | Keeps movement in selected patients |
Back or leg pain for more than 6 weeks? Get the free guide and a doctor review of your scan.
Questions to ask before fusion
- What exactly is the fusion meant to fix?
- What results do your patients usually get at 1 and 2 years?
- What is the risk of needing more surgery later?
- Have regenerative options been considered for my discs?
Get a free second opinion on your MRI before deciding: MRI review.
