CRPS: Getting a Second Opinion

Complex Regional Pain Syndrome · Second Opinions · Reviewed by Samuel Caruthers, MD

Complex regional pain syndrome usually begins with something small. A wrist fracture, an ankle sprain, a minor operation. The injury heals on schedule and the pain does not go with it. Instead it intensifies, spreads beyond the original site, and starts behaving in ways that make no sense to anyone who has not seen it before. The limb changes color. It swells, or sweats, or grows cold. The lightest touch, a sleeve, a bedsheet, becomes unbearable.

Patients with CRPS often spend months being told the imaging looks fine and that the pain should be settling by now. By the time someone names the condition, valuable time has frequently passed.

This article covers what CRPS is, why it is diagnosed late so often, what treatment involves, and the specific situations in which seeking another opinion is worth doing rather than waiting.

What CRPS is

CRPS is a chronic pain condition in which pain is disproportionate in both severity and duration to the injury that triggered it. It usually affects a limb and it involves more than pain alone.

The features that distinguish it tend to cluster in a recognizable way. There is sensory change, including allodynia, in which something that should not hurt does, and hyperalgesia, in which something mildly painful hurts enormously. There are vasomotor changes, meaning differences in skin color and temperature between the affected limb and the other side. There is sudomotor change, involving swelling or altered sweating. And there are motor and trophic changes, including weakness, tremor, reduced range of motion, and changes to hair, nail, and skin texture.

CRPS is understood to involve a combination of peripheral nerve changes, inflammatory processes, autonomic nervous system involvement, and central sensitization in the spinal cord and brain. That mixture is part of why no single treatment addresses it completely.

Why it gets diagnosed late

There is no blood test for CRPS and no scan that confirms it. Diagnosis is clinical, made by applying a set of criteria to what a physician observes and what the patient reports. The criteria most widely used are the Budapest criteria, which require symptoms across several categories along with observed signs on examination, and which require that no other diagnosis better explains the picture.

Applying those criteria requires having seen the condition before. A clinician who encounters it rarely may reasonably attribute the findings to slow healing, to a soft tissue problem, or to something psychological. Meanwhile the imaging keeps coming back unremarkable, which is exactly what would be expected in CRPS and which is easily read as reassurance.

Normal imaging is not evidence against CRPS. In many cases it is precisely what the condition looks like on a scan.

This matters more here than in most chronic pain conditions, because duration appears to influence outcome. CRPS treated relatively early, with movement and desensitization maintained, tends to do better than CRPS that has been established for a long time. Delay is not neutral.

When a second opinion is worth pursuing

Not every patient needs one. These are the situations where we think it is reasonable to seek another assessment rather than continuing to wait.

Nobody has named a diagnosis. If your pain has persisted well past the expected healing time for your injury, if it is disproportionate to what happened, and if you have color, temperature, swelling, or sensitivity changes, the possibility of CRPS should at least have been raised and formally considered.

You are waiting a long time for appointments. In a condition where duration influences outcome, a wait of several months between assessment and treatment is itself a clinical problem. If the practical reality of your care is that nothing happens for long stretches, that is worth solving.

You have plateaued. You started treatment, saw some improvement, and then stopped progressing. A fresh assessment may identify options that have not been tried.

Only one modality has been offered. CRPS generally responds best to combined treatment. If your care has consisted of a single approach, particularly without physical therapy or desensitization work alongside, there is likely more available.

You have been told nothing more can be done. This is sometimes true and often premature. It is worth confirming with someone who has not already reached that conclusion.

What treatment involves

There is no single cure for CRPS, and any source suggesting otherwise should be treated with suspicion. Treatment is combined and aimed at reducing pain enough to allow function, because keeping the limb moving is central to outcome.

Physical and occupational therapy. Desensitization, graded motor imagery, mirror therapy, and progressive movement form the backbone of care. This is not an adjunct to the medical treatment; in most protocols it is the main event, and the medical treatment exists partly to make it tolerable.

Medications. Neuropathic agents, and in some cases bisphosphonates or corticosteroids, particularly in earlier stages.

Sympathetic nerve blocks. Stellate ganglion blocks for upper limb involvement or lumbar sympathetic blocks for lower limb. These can be diagnostic as well as therapeutic, and where they produce relief they often create a window in which therapy becomes possible.

Spinal cord stimulation. Neuromodulation has an established role in CRPS that has not responded to less invasive measures, with a trial period preceding any permanent implant.

Ketamine infusion therapy. Of all the chronic pain conditions in which ketamine is used, CRPS is among the most studied. Small randomized trials have reported meaningful reductions in pain, with benefit that tends to diminish over subsequent weeks to months, which is why repeated courses are sometimes used. The rationale rests on the central sensitization component of CRPS and ketamine’s action at NMDA receptors.

What you can do while you are waiting for care

Because time matters in CRPS and appointments often do not happen quickly, patients frequently ask what is useful in the meantime. These are general principles rather than a treatment plan, and they should be checked against whatever your own clinicians have advised.

Keep using the limb, within tolerance. The instinct with a limb that hurts to touch is to protect it completely, and prolonged disuse tends to make CRPS worse rather than better. Contracture, further weakness, and increased sensitivity all follow from immobility. Gentle, regular, tolerable use is generally preferable to rest, and a therapist can show you how to grade it.

Desensitization work is usually part of the plan. Graduated exposure to touch and texture is a standard component of CRPS therapy. It is uncomfortable by design and it is done progressively, which is why doing it under guidance matters.

Keep a symptom record. Note colour and temperature changes, swelling, what makes things worse, and how the limb varies through the day. Since diagnosis depends on observed signs, and since signs fluctuate, a record of what happens between appointments is genuinely useful to whoever assesses you. Dated photographs of colour and swelling changes are worth taking.

Gather your records now. Notes from the original injury, imaging, therapy records, and a list of every treatment tried with its result. Arriving with these turns a first visit into a working appointment rather than a history-gathering exercise.

How we approach a CRPS evaluation

An assessment here covers your history from the original injury forward, an examination looking specifically for the sign categories in the diagnostic criteria, a review of your imaging and records, and a discussion of every treatment already tried and how each performed.

You should leave with a clear statement of whether the picture is consistent with CRPS, what options exist, what we would suggest first, and what a realistic expectation looks like. If we do not believe we can add anything to what you are already receiving, we will tell you that rather than starting treatment for its own sake.

We see patients promptly, no referral is required, and a complimentary MRI review is available if you want your imaging looked at before committing to a visit. Our Parsippany office serves Morris County including Lincoln Park and Pine Brook, with additional locations in Clifton, Hackettstown, and Hamburg.

Frequently asked questions

Is there a test that confirms CRPS?

No. Diagnosis is clinical, based on criteria applied to your symptoms and examination findings, with other explanations ruled out. Imaging and bloodwork are usually normal, which is expected rather than reassuring.

Is CRPS the same as RSD?

Yes. Reflex sympathetic dystrophy is the older term for the same condition. Records using either name refer to the same thing.

Can CRPS be cured?

Some patients, particularly those treated early, experience substantial or complete resolution. Others live with a long-term condition that can be managed but not eliminated. Any source promising a cure is overstating what is known.

How quickly can I be seen?

We prioritize prompt evaluation in CRPS specifically, because time to treatment appears to affect outcome. Call the office and we will give you a real date rather than putting you on a list.

How long does relief from ketamine last in CRPS?

It varies considerably. Published trials have generally reported benefit measured in weeks to a few months rather than permanently, which is why repeated courses are sometimes used. Your physician will discuss what is realistic in your case.

Do I need a referral to be seen?

No. You can schedule directly. Bringing prior records, imaging, and a list of treatments already tried will make the visit considerably more useful.

Medical disclaimer. This article is for general educational purposes and is not medical advice, nor does it create a physician-patient relationship. Complex regional pain syndrome requires individual clinical assessment, and the treatments described may not be appropriate in your case. Ketamine infusion therapy for CRPS is an off-label use and is not FDA approved for this indication. Individual results vary and no outcome is guaranteed. Do not start, stop, or change any medication or treatment based on this article. If you are experiencing a medical emergency, call 911.