How long does it take to recover from sacroiliac joint fusion?

Initial recovery usually takes 6–8 weeks. Complete bone fusion can take several months. Most patients experience gradual improvement in pain and mobility during this time.

Will I be able to walk after surgery?

Yes. Walking is typically encouraged early in recovery, but heavy lifting, twisting, or high-impact activities should be avoided for several weeks.

Is this procedure minimally invasive?

In many cases, yes. Minimally invasive techniques are often used to reduce muscle disruption, speed up recovery, and lower the risk of complications.

Sacroiliac Joint Fusion

Sacroiliac joint fusion is a surgical procedure performed to stabilise and eliminate movement at the sacroiliac (SI) joint, which connects the sacrum (the base of the spine) to the ilium (part of the pelvis). It is typically recommended for patients with chronic SI joint pain, instability, or dysfunction that has not responded to non-surgical treatments.

Doctor pointing at a spine model during a medical consultation

What to Expect

During sacroiliac joint fusion, your surgeon will access the joint through a small incision and insert a bone graft or specialised implant to promote bone growth and permanently fuse the sacrum and ilium. In some cases, screws or fixation rods may be used to stabilise the joint and assist in fusion.

The goal of the procedure is to:

Alleviate persistent low back or buttock pain
Improve joint stability
Enhance quality of life and mobility

Sacroiliac joint fusion may be recommended for conditions such as:

Degenerative sacroiliitis
SI joint dysfunction
Traumatic injury to the pelvis
Pelvic instability due to hypermobility or inflammatory arthritis

What to Expect at Your Consultation

At your initial appointment with our neurosurgeon, we will:

Review your symptoms and medical history
Perform a focused physical and neurological examination
Evaluate imaging (X-rays, CT or MRI) to confirm SI joint involvement

We will explain your diagnosis in detail and guide you through treatment options. If surgery is advised, we’ll discuss the procedure, recovery process, and anticipated outcomes so you can make an informed decision.

Post-operative Care for Sacroiliac Joint Fusion

After surgery, your recovery plan will be designed around your needs and overall health. Post-operative care includes:

Pain management with medications as prescribed
Wound care with detailed instructions for dressing changes and monitoring for signs of infection
Gradual mobilisation, with support from physiotherapy where required

Your neurosurgeon will review your progress at your four-week post-operative appointment and discuss your return to driving, physical activity, and work.

Tip: Light walking (within limits) is encouraged soon after surgery to reduce stiffness and improve circulation.

Follow-up with Your GP

You should also visit your general practitioner:

One week post-op – to review medications and wound healing
Two weeks post-op – to assess ongoing progress and support your recovery plan

Frequently Asked Questions

How long does it take to recover from sacroiliac joint fusion?
Initial recovery usually takes 6–8 weeks. Complete bone fusion can take several months. Most patients experience gradual improvement in pain and mobility during this time.
Will I be able to walk after surgery?
Yes. Walking is typically encouraged early in recovery, but heavy lifting, twisting, or high-impact activities should be avoided for several weeks.
Is this procedure minimally invasive?
In many cases, yes. Minimally invasive techniques are often used to reduce muscle disruption, speed up recovery, and lower the risk of complications.

How do I know if my SI joint is the source of my pain?
Diagnosis involves physical examination, and often diagnostic injections to confirm the SI joint as the pain generator.
Do I need a referral to see a neurosurgeon?
Yes. A referral from your GP or specialist is required to schedule your consultation.