Skip to main content

CRPS after surgery · St. Louis

Complex Regional Pain Syndrome After Surgery

CRPS does not only follow accidents. It follows operations too. After surgery it is especially easy to brush off.

What is CRPS after surgery?

A surgical injury can set off the same self-feeding pain loop as an accident can.

CRPS after surgery is often blamed on a slow recovery. That delays the diagnosis at exactly the point where early treatment matters most.

What are the symptoms of CRPS after surgery?

  • Pain far beyond what the operation should cause.
  • Color and temperature change in the limb.
  • Swelling and sweating change.
  • Extreme sensitivity to light touch.
  • Stiffness, and not wanting to use the limb.

How is CRPS after surgery treated?

To be assessed, call us or request an appointment.

What usually gets missed

CRPS after surgery gets blamed on a slow or hard recovery for longer than CRPS after an accident, because there is an obvious other explanation at hand. That delay is the single biggest factor in how it turns out.

These features should raise suspicion. The pain is out of proportion to the procedure. One side differs in color or temperature. Add swelling, sweating change, and allodynia. Allodynia is pain from light touch that no surgical recovery explains.

Will CRPS ever go away?

When it is caught within the first few months, a large share of patients improve markedly with sympathetic blocks and intensive rehab.

Left beyond a year, it becomes much more resistant. The treatment goal then shifts toward function and less pain, not a full cure. Nothing about that argues for waiting.

When this becomes urgent

Rising pain with swelling and color change in the weeks after an operation needs assessment within weeks, not months. Fever, wound drainage or spreading redness suggests infection instead. That needs same-day review.

Why it happens

Complex regional pain syndrome is an outsized pain response after an injury or operation. It involves the sympathetic nervous system (the automatic wiring behind fight or flight), changed processing in the brain and spinal cord, and inflammatory change. What sets it apart is everything that does not fit an ordinary recovery. The pain runs far beyond the original injury. Skin color and temperature change. Look for swelling, sweating changes, changed hair and nail growth, and extreme sensitivity to light touch.

What it gets confused with

It is often dismissed as slow healing or as anxiety. That costs time that matters. Early recognition truly changes outcomes, because restoring movement while the limb still works is far easier than after months of disuse and stiffness.

Working with your other clinicians

If you already have a primary doctor, surgeon or therapist, the aim is to add a diagnosis, not a competing plan. Our findings and reasoning go back to whoever referred you or manages your care. When the answer is that no procedure is needed, we say that just as clearly.

Common questions

My surgeon says it is just a slow recovery. What should I do?

Pain out of proportion, with color, temperature or swelling change, deserves a specific assessment. Time is the thing you cannot get back with CRPS.

Why does light touch hurt so much?

The nervous system has become sensitized, so it reads ordinary touch as pain. It is a real physiological change, not an exaggeration.

Does early treatment matter?

Substantially. Early treatment aimed at restoring movement is associated with better outcomes. That is why we want to see this sooner rather than later.

What is the most common cause of CRPS?

It starts after an injury or an operation. A surgical injury can switch on the same self-feeding pain loop as an accident. It involves the sympathetic nervous system, changed processing in the central nervous system and inflammatory change. After surgery it is often blamed on a slow recovery. That delays the diagnosis at exactly the point where early treatment matters most.

Will CRPS ever go away?

It can improve a great deal when it is caught early. When it is caught within the first few months, a large share of patients improve markedly with sympathetic nerve blocks and intensive physical therapy. Left beyond a year, it becomes much more resistant. The goal then moves toward better function and less pain, not full resolution. Nothing about that argues for waiting.

What are the symptoms of CRPS?

Pain far beyond what the injury or operation should cause. Color and temperature changes in the limb. Swelling, sweating changes, changed hair and nail growth, and extreme sensitivity to light touch. The limb also stiffens, and people stop wanting to use it. If any of these show up after surgery and do not fit an ordinary recovery, get a specific CRPS assessment.

Sources

  • Ferraro MC et al. Complex regional pain syndrome: advances in epidemiology, pathophysiology, diagnosis, and treatment. The Lancet. Neurology, 2024. PubMed 38631768
  • Harden RN et al. Complex Regional Pain Syndrome: Practical Diagnostic and Treatment Guidelines, 5th Edition. Pain medicine (Malden, Mass.), 2022. PubMed 35687369
  • Taylor SS et al. Complex Regional Pain Syndrome: A Comprehensive Review. Pain and therapy, 2021. PubMed 34165690
  • Tian Y et al. Stellate Ganglion Block Therapy for Complex Regional Pain Syndrome: A Systematic Review and Meta-Analysis. Pain physician, 2024. PubMed 38805523

Hurt in an accident? Start here.

You do not need a lawyer, a police report or a referral to be seen. Bring your symptoms and we will work out the rest.

Monday–Friday, 8:00 a.m. – 4:00 p.m. Same-day appointments are often available for new accident and injury patients.