What is Failed Back Surgery Syndrome (FBSS)?

Failed Back Surgery Syndrome (FBSS) is a condition in which the patient continues to experience pain after spine surgery, or the pain returns some time after the operation. This is not the surgeon's fault in most cases — the problem lies in the approach itself: surgery removes damaged tissue but does not restore it.

According to statistics, up to 40% of patients after spine surgeries (microdiscectomy, laminectomy, spinal fusion) do not receive the expected relief or experience new problems.

Causes of FBSS:

Hernia recurrence — repeated disc protrusion at the operated level (15-25% of cases)
Epidural fibrosis — scar and adhesive changes in the spinal canal compressing nerve roots
Segmental instability — after partial disc removal, the spinal segment loses stability
Adjacent segment syndrome — after spinal fusion, adjacent segments degenerate faster due to overload
Incomplete decompression — nerve remained partially compressed
Nerve structure damage — intraoperative nerve injury

Manifestations of FBSS

Pain Syndrome

Pain returns weeks-months after surgery
New pain character (burning, shooting)
Pain at the surgical scar site
Chronic pulling pain in the lower back
Leg pain (sciatica recurrence)

Neurological Symptoms

Numbness and paresthesias in the extremities
Muscle weakness
Sensory disturbances in new areas
Neuropathic pain (burning, "electric shocks")
Limited mobility

Vicious Cycle of FBSS

First surgery → scarring → pain
Second surgery → more scars → more pain
Each surgery worsens the anatomy of the area
Traditional medicine offers neurostimulators or painkillers
Regenerative treatment breaks this vicious cycle

Failed back surgery syndrome (FBSS): treatment options and what is known about them

The treatment plan is made by the clinic doctor after an examination and a review of your images. The table shows the options usually discussed for this diagnosis and how well they have been studied.

Option	What to expect	How well studied
Exercise therapy and physiotherapy	Reduces pain, strengthens muscles, improves function; the basis of treatment	Moderate evidence
Painkillers and NSAIDs	Ease pain during flare-ups; long-term use is limited by side effects	Moderate evidence
Epidural or perineural injection	Reduces radicular pain for weeks or months, helps get through a flare-up	Limited or conflicting evidence
Radiofrequency denervation	Switches off the small pain nerves of the joint; in some patients the effect lasts 6–12 months	Limited or conflicting evidence
PRP / CGF	Concentrate from your own blood; may reduce pain, growth of new tissue has not been shown	Little data
Repeat surgery or neurostimulation	If conservative treatment does not help or there is an indication	When indicated — the doctor decides

We send your request to several partner clinics. Some will suggest conservative treatment or injections, others surgery; each clinic quotes its own conditions and price. We help you compare the options.

Regenerative methods: realistic expectations

Pain after spine surgery has different causes: scarring, a new herniation, instability, nerve damage. Accurate diagnosis comes first — an MRI with contrast and sometimes functional X-rays. Treatment is usually combined: physiotherapy, medication for nerve pain, injections and, in selected cases, neurostimulation. There is little data on regenerative injections in FBSS.

When surgery is discussed. Repeat surgery is considered only if a specific correctable cause is found — for example a new herniation compressing a nerve, or instability.

If an injection helps, the effect usually builds up over 6–12 weeks, and the result is assessed after 2–3 months. No clinic can guarantee a result.

Good to know: diagnosis, self-help, outlook

Why pain persists after spine surgery

Failed back surgery syndrome is an umbrella term: pain may come from a recurrent herniation at the same level, scarring around the nerve root, stenosis or instability of the adjacent segment, the facet or sacroiliac joints, or nerve damage that existed before surgery. Finding the source matters: contrast MRI distinguishes scar from recurrent herniation, and flexion-extension X-rays show instability.

What you can do yourself

Regular exercise therapy and core strengthening reduce pain in many patients. Walking and swimming, weight control and stopping smoking help. It is important not to build up anxiety and fear of movement: with chronic pain, psychological support also helps.

Outlook and timelines

Revision surgery helps mainly when a specific mechanical cause is found — a recurrent herniation compressing the root or instability. For scar-related and neuropathic pain, rehabilitation programmes, neuropathic pain medication, nerve blocks and, in selected cases, spinal cord stimulation are used more often. The clinic physician draws up the plan after reviewing all images.

Who it is not suitable for and possible risks

Contraindications

Active infection — at the injection site or systemic, with fever.
Active cancer or ongoing chemotherapy.
Blood clotting disorders or a low platelet count. Anticoagulants are discussed with the physician.
Pregnancy and breastfeeding — the procedure is usually postponed.
A corticosteroid injection into the same area in recent weeks.
Urgent surgery, not injections, is needed if there is progressive leg weakness, numbness in the groin area or bladder dysfunction.

Possible risks

Pain and swelling at the injection site for 1–3 days.
Bruising where blood or fat tissue is taken.
Rarely, infection. The procedure is therefore performed under sterile conditions with ultrasound or X-ray guidance.
The effect may be absent or smaller than expected.
Injections into the intervertebral disc carry a rare risk of disc inflammation (discitis).

If any of these apply to you, mention it in your request. The coordinator will check with the clinic physician whether treatment is possible. Contact a coordinator.

Scientific evidence

Studies of regenerative methods show mixed results. Clinic physicians rely on research including the following:

Next steps: Treatment methods · Treatment cost · How treatment in Germany is organised

Frequently Asked Questions about FBSS Treatment

Failed back surgery syndrome (FBSS): can surgery be avoided?

Often yes: repeat surgery does not help everyone, so physiotherapy, medication and injections come first. Repeat surgery only when there is a clear cause.

Failed back surgery syndrome (FBSS): do PRP and cell-based methods help?

There is little data on PRP and cell-based methods in FBSS; they may be discussed as part of combined treatment, but not as the main method.

When can I expect a result after an injection?

If an injection helps, relief usually builds up over 6–12 weeks. The result is assessed after 2–3 months; not everyone needs a repeat procedure. No clinic can guarantee a result.

Failed back surgery syndrome (FBSS): when is surgery needed?

Repeat surgery is considered only if a specific correctable cause is found — for example a new herniation compressing a nerve, or instability. The decision is made by the clinic doctor.

How does RegenPAS help organise treatment?

RegenPAS is a patient service centre in Munich, not a clinic. We review your images and symptoms and send a request to several partner clinics at once. Clinics that can accept you send their own conditions and price; prices differ between clinics, and you choose the option that suits you. The coordinator replies within 24 hours, and a clinic physician’s preliminary opinion follows in 1–3 business days. We then arrange the appointment, visa invitation, interpreter, transfers and accommodation. Treatment decisions are made by the clinic physician. Contact a coordinator.

What is needed for a preliminary assessment?

Your MRI (or CT, X-ray) report and the images if you have them, plus a short description of your symptoms and previous treatment. Send them via the form on the website — the assessment is free and without obligation: the coordinator replies within 24 hours, and the clinic physician’s preliminary opinion follows in 1–3 business days.

How much does treatment cost and how long do I need to stay in Munich?

The cost depends on the method, the diagnostics needed and the clinic itself: prices differ between clinics. We request offers from several clinics and send you their conditions and quotes so you can compare. Price guidance is on the treatment cost page. For an outpatient procedure, 2–3 days in Munich are usually enough: examination, procedure and follow-up visit.

Treatment

Compare Methods

Cost

Clinic and method matching — free of charge

Describe your case and attach your MRI report. We will identify clinics that use the relevant methods and forward your request to them. No obligation; we reply within 24 hours.

Send a request

+49 160 573 6643