How long does spinal fusion take to heal?

It may be several months before the bone is solid, although comfort often improves sooner (AAOS). Physical therapy typically starts 6 weeks to 3 months after surgery, if your surgeon thinks you need it, and for fusion for low back pain the AAOS says full recovery can take more than a year.

Will spinal fusion take away my pain?

Not always. MedlinePlus says surgery does not always improve pain and can sometimes make it worse, and that people with chronic back pain before surgery will likely still have some pain afterward.

How much does spinal fusion cost?

SpinalCare does not publish a price, because no cited source gives one figure that would apply to you. CMS says US hospitals must publish the rates they negotiate with insurance companies and a separate cash price, so you can compare hospitals.

Two X-ray views of a human spine on a light panel

Spine procedure · plain-English guide

Spinal fusion

Photo: cottonbro studio / Pexels

Spinal fusion joins two or more vertebrae so they heal into a single, solid bone, to stop painful motion or restore stability. The AAOS says it is usually recommended only when the source of pain can be pinpointed, and that full recovery from fusion for low back pain can take more than a year.

Overview

The AAOS compares spinal fusion to welding: two or more vertebrae are joined so they heal into one solid bone. A bone graft (your own bone, donor bone or a synthetic material) is placed to help them grow together, and plates, screws or rods often hold the spine still while it heals.

Fusion removes motion between the fused vertebrae, but the AAOS notes that most fusions involve only small segments of the spine and do not significantly limit motion.

For low back pain, the AAOS advises trying nonsurgical treatment for 6 months to 1 year before considering surgery, and says the results of fusion for low back pain vary.

Why it is done

Degenerative disc disease
Spondylolisthesis, where a vertebra slips out of place
Spinal stenosis, sometimes together with a laminectomy to relieve leg or arm pain
Scoliosis
A fractured vertebra
Infection or a tumour
A herniated disc

What happens

You are given general anaesthesia (MedlinePlus)
The surgeon reaches the spine from the front, back or side; minimally invasive techniques use smaller incisions (AAOS OrthoInfo)
Bone graft material is generally placed between the vertebrae to stimulate them to grow together (AAOS OrthoInfo)
Plates, screws and rods may be used to hold the spine still, which may increase the rate of successful healing (AAOS OrthoInfo)

Recovery

You may stay in hospital for up to 3 to 4 days (MedlinePlus)
You will be taught how to move, sit, stand and walk to protect your spine, and you may need to wear a brace
It may be several months before the bone is solid, although comfort often improves much sooner (AAOS OrthoInfo)
Physical therapy typically starts 6 weeks to 3 months after surgery, and your surgeon will talk to you about whether you need it (AAOS OrthoInfo)
For fusion for low back pain, the AAOS says full recovery can take more than 1 year

Risks

Infection, which the AAOS says is very rare after spine surgery
Bleeding
Blood clots in the legs, which can travel to the lungs
Injury to nerves or blood vessels
Persistent pain at the bone graft site, in a small percentage of people
Pseudarthrosis: the bones do not fuse solidly. It is more likely in people who smoke, have diabetes or are older, and may need a second surgery
A return of the original symptoms

Results

MedlinePlus says surgery does not always improve pain and in some cases can make it worse, though in some people it can be effective for severe pain that does not get better with other treatments. If you had chronic back pain before surgery, you will likely still have some pain afterward.

What it costs, and how to find out

SpinalCare does not publish a price for these procedures, because no cited source gives one figure that would apply to you.

Since January 1, 2021, US hospitals have had to publish their standard charges online, free of charge. That includes the rates they negotiate with insurance companies and the discounted price they will accept if you pay in cash (CMS).

Hospitals must also show prices for at least 300 "shoppable" services that can be planned in advance, in a consumer-friendly format. The rule applies to hospitals. CMS suggests checking these charges before you receive care, and using Medicare's Care Compare to look at quality information for over 4,000 Medicare-certified hospitals.

Watch: a short explainer

What is spinal fusion?
Mayo Clinic · Mayo Clinic (academic medical centre)
A short Mayo Clinic explainer on what spinal fusion is. We embed it for general education; it is not a substitute for a consultation with a spine surgeon.

Frequently asked

How long does spinal fusion take to heal?: It may be several months before the bone is solid, although comfort often improves sooner (AAOS). Physical therapy typically starts 6 weeks to 3 months after surgery, if your surgeon thinks you need it, and for fusion for low back pain the AAOS says full recovery can take more than a year.
Will spinal fusion take away my pain?: Not always. MedlinePlus says surgery does not always improve pain and can sometimes make it worse, and that people with chronic back pain before surgery will likely still have some pain afterward.
Does spinal fusion limit movement?: It stops motion between the fused vertebrae. The AAOS says most fusions involve only small segments of the spine and do not significantly limit motion; your surgeon can explain the effect of your specific procedure.
How much does spinal fusion cost?: SpinalCare does not publish a price, because no cited source gives one figure that would apply to you. CMS says US hospitals must publish the rates they negotiate with insurance companies and a separate cash price, so you can compare hospitals.

Sources

This page organises information from the cited sources for general education. It is not medical advice and has not been reviewed by a clinician. Always discuss a procedure with a qualified clinician. Editorially reviewed October 4, 2026.