Spinal Cord Stimulators Fail to Reduce Opioid Use

By Pat Anson, PNN Editor

A large new study is raising questions about the long-term effectiveness of spinal cord stimulators and whether they really help patients reduce their use of opioids and other pain treatments.

Researchers at the University of California San Francisco (UCSF) School of Medicine analyzed health data for 1,260 patients who received permanent stimulators and found that — when compared to a control group — the devices did not reduce their use of opioids, epidurals, corticosteroid injections or radiofrequency ablation after two years. About a fifth of the patients experienced complications so severe the devices had to be removed or revised.

Spinal cord stimulators (SCSs) are considered an invasive treatment of last resort for people with chronic back or leg pain, because the devices have to be surgically implanted near the spine and connected to batteries placed under the skin. The implants send electrical impulses into the spine to mask pain.

About 50,000 SCSs are implanted annually in the U.S. and their use is growing – in part because of the belief they’ll reduce the need for opioids and other pain therapies.

But UCSF researchers found that SCS patients actually filled more opioid prescriptions after one year than a control group of pain patients (CMM) who did not get the devices. The use of other medications and procedures by SCS patients declined slightly after one year, but there were no significant differences between the two groups after two years.

“The lack of reduction in pharmacotherapy, epidural and facet corticosteroid injections, and radiofrequency ablations at 2 years among patients receiving SCS compared with those receiving CMM suggests that SCS was providing insufficient pain relief to forego other therapies or improve rates of depression or anxiety, as prescriptions for these drug classes did not decline,” lead author Sanket Dhruva, MD, an Assistant Professor of Medicine at UCSF, wrote in JAMA Neurology.

“Because most patients still had their permanent SCS in place at 2 years, some may receive prolonged benefit from this modality, although we were not able to identify this through reductions in opioid use or nonpharmacologic pain interventions.”

Researchers also found that the total cost of care was about $39,000 higher for SCS patients in the first year, while health costs were similar for the two groups in the second year.

‘Sobering Insights’

"The findings appear to belie the popular belief that SCS may result in reduced opioid medication usage or overall fewer physician visits in the years immediately following device implant," wrote Prasad Shirvalkar, MD, and Lawrence Poree, MD, both from the UCSF Division of Pain Medicine, in an accompanying editorial.

“Using robust propensity matching, the present study provides sobering insights that SCS does not appear to reduce chronic opioid use or the utilization of health care resources compared with CMM in the first 2 years after implant. We believe this will help mitigate excessive enthusiasm of SCS as a panacea for chronic pain syndromes and illuminate biases of SCS hype cycle that can possibly be fueled by industry-related conflicts of interest.”

Stimulators are no longer limited to patients with chronic back, neck and leg pain. Last year the FDA expanded the use of SCSs to include pain from diabetic neuropathy. Stimulators are also now being used on patients with Complex Regional Pain Syndrome (CRPS).

A 2018 study by a team of investigative journalists found that SCSs have some of the worst safety records of medical devices tracked by the FDA. A 2020 FDA review of adverse events involving stimulators found that nearly a third were reports of unsatisfactory pain relief. The review also identified nearly 500 deaths linked to the devices, along with nearly 78,000 injuries and 30,000 device malfunctions.

Guidelines Urge More Caution in Use of Invasive Neck Procedures

By Pat Anson, PNN Editor

Invasive procedures such as steroid injections, nerve blocks and radiofrequency ablation should be used more cautiously when treating chronic neck pain, according to new guidelines adopted by the American Academy of Pain Medicine and American Society of Regional Anesthesia and Pain Medicine.

The two medical societies formed a joint guidelines committee in 2020 to look into cervical spine joint procedures, which are increasingly used despite questions about their effectiveness and safety. The use of radiofrequency ablation -- heat from an electric current used to burn painful nerve endings — has increased by 112% in the U.S. over the past decade.

Spine pain in the neck or lower back is the leading cause of disability worldwide, with nearly half of adults likely to be affected at some point in their lives. The cervical facet joints, which allow the neck and back to tilt forwards, backwards and to rotate, are the primary source of pain in about 40% of patients with chronic neck pain and over half of those with neck pain after whiplash injury.

"It is precisely because neck pain and cervical spine procedures are so common, and there is so little high-quality evidence to guide care, that consensus guidelines are needed,” says lead author Steven Cohen, MD, a professor of anesthesiology at Johns Hopkins Hospital and co-chair of the guidelines committee.

The new guidelines, published online in the journal Regional Anesthesia & Pain Medicine, are based on over 400 publications and clinical studies of cervical spine procedures. Reviewers also looked at clinical signs and imaging used to select patients for particular procedures; the diagnostic and prognostic value of procedures; and several aspects of radiofrequency ablation (RFA), including how to reduce the risk of complications from the procedure and whether it should be repeated.

Because acute neck pain often resolves by itself, the guidelines recommend 6 weeks of conservative management, such as non-opioid painkillers and physical therapy, before opting for RFA or nerve blocks.

The reviewers found that RFA may be helpful for easing chronic neck pain, but only in patients whose pain corresponds to the joints being treated; those whose symptoms don’t emanate from a nerve root; and those who obtain meaningful pain relief from diagnostic nerve blocks, which are typically performed before RFA. 

Many insurance carriers require two nerve blocks, but the evidence indicates that doubling up will result in a significant number of unnecessary procedures and higher costs. Reviewers say the evidence for performing only a single block is much stronger for the neck than for the lower back.

The guidelines also recommend against stringent patient selection criteria, such as requiring nearly total pain relief from diagnostic blocks, because it might exclude patients who might benefit from radiofrequency ablation. None of the clinical studies that were reviewed support using pain relief thresholds above 50 percent.

Physicians should warn patients about the common side effects of RFA, such as tingling and burning sensations, numbness, dizziness, and loss of balance and coordination, which can last from a few days to a few weeks after the procedure. Patients also need to be told that RFA won’t cure them, and that pain relief typically lasts between 6 and 14 months. 

While most patients who have the procedure repeated will get pain relief, the benefits may wane over several years. RFA shouldn’t be repeated more than twice a year, the guidelines recommend.

Other key recommendations include:

• Use only soluble, short-acting steroids when injecting into the upper neck joints

• Use fluoroscopy imaging before spinal injections to avoid inadvertent needle placement

• Use smaller needles and electrodes than those used for the lower back

• Use nerve and muscle stimulation to improve effectiveness and reduce the risk of complications

• Take steps to minimize interference with implanted electrical devices such as pacemakers

“Clinical trials evaluating cervical facet blocks and RFA are characterized by widely disparate outcomes, and there is enormous variation in selecting patients and performing procedures. These multi-society guidelines have been developed to serve as a roadmap to improve outcomes, enhance safety, and minimize unnecessary tests and procedures,” the reviewers concluded.

Why Do Doctors Keep Pushing Invasive Procedures on Me?

By Mike Emelio, Guest Columnist 

I'm not a cynical person by nature, but I'm seeing a very clear pattern with interventional pain management doctors. Why is it that every doctor I've seen who is certified in interventional pain medicine (at least 8 of them already) demonize opioid medication and insist on pushing their non-FDA approved injections, radiofrequency ablations, pain pumps and spinal cord stimulators? 

This approach is even more absurd when you consider the fact that invasive procedures tend to have low rates of efficacy and are known to create scar tissue and nerve damage, both of which can cause more pain.  

As if this weren't ridiculous enough, in spite of explaining to these doctors how epidural steroid injections not only didn't work for me, but robbed me of my life by tripling my pain and making my condition much worse (see “Disabled by the War on Opioids”), every single one of the doctors I've seen still tries to push more of those injections on me.  

My head spins every time I hear them try to sell me on more injections. Are they deaf, insane, just trying to make their wallets fatter, or all three?

On what planet does it make sense to do more of what made a thing worse? 

Ever since my life was ruined by those injections 5 years ago, I've been desperately trying to find a doctor who truly cares about my well-being and wants to help me. My search has been fruitless so far.  

Sadly, it just keeps getting worse. The latest doctor I started seeing keeps pushing a pain pump on me. That is as absurd as it gets. Multiple doctors have told me that the reason those injections made my back pain worse is because they caused adhesive arachnoiditis or nerve damage – both of which can be made worse with invasive procedures.  

Why would any doctor push a pain pump on me? I could understand it for a patient with a history of drug abuse, but that is not the case with me. Not only do I have zero history of drug or alcohol abuse, but I have taken my pain meds responsibly for many years. Why should I submit to being put under anesthesia, cut open and have a device implanted in me, all which can have serious complications, when I can get the same medication in a pill that I took responsibly for many years? 

All of the surgeons say that my best option for improved quality of life is pain medication and staying as active and mobile as possible. Yet every interventional pain management doctor ignores their advice and pushes for injections, spinal cord stimulators or pain pumps. Why would they do that?  

It's simple.  According to my Medicare statements, a doctor makes about $75 per visit to write and maintain prescription medications. But with the injections, it's $1,000 and up!

Many times I've personally seen doctors perform unnecessary tests that pay them a lot of money and only for that reason. This is not just my opinion, as other doctors I've seen have confirmed this. Not all doctors are like this and I wouldn't even venture to say most, but the fact is there are plenty of them out there. 

I'm not saying any of this to bash doctors. I'm sharing this information in hopes that people take the time to get educated, be vigilant and be their own advocate when it comes to their healthcare. Doctors are only human. They're just as susceptible to flaws as anyone else. I can't impress enough on all of you to look out for yourselves and get second, third, fourth and even fifth opinions if needed.

If you think that sounds excessive, just think about what happened to me. They took away what was working for me and used a non-FDA approved procedure on me that wasn't even designed for what they were using it for. The end result was that it crippled me, robbed me of my ability to work, forced me into a life of poverty and disability, and took away my freedom, my dignity and my ability to properly care for myself. 

Simply put... It has devastated my life.

I don't post any this for sympathy. I am only trying to educate and inform people about what can happen if they put too much faith in doctors without doing some research. What happened to me is a prime example of just how essential it is that we patients be as proactive as possible, be our own advocates and protect ourselves. 

Michael Emelio lives in Florida.

Pain News Network invites other readers to share their stories with us. Send them to editor@painnewsnetwork.org.

The information in this column should not be considered as professional medical advice, diagnosis or treatment. It is for informational purposes only and represents the author’s opinions alone. It does not inherently express or reflect the views, opinions and/or positions of Pain News Network.

What Back Pain Sufferers Should Know

By Doug Beall, MD, Guest Columnist

Allow me to describe a common patient referred to my office. Their back pain has been around long enough to be chronic and anti-inflammatory pills no longer dilute the pain.  Good days are when the patient is able to leave the house and painfully make it through eight hours at work; bad days are when the only endurable position is to lay flat at home all day.

Learning to live with the pain is no longer an option, so his physician refers him to my office. Let's pause the story here.

This sequence has been the experience of countless patients suffering from back pain. After months — sometimes years — of what feels like a 10 on the pain scale, these patients are willing to do almost anything to make the pain go away.

By the time they come to the doctor, most have done their research and have already written their own prescription, concluding that invasive surgeries and painkillers are the only options strong enough to alleviate their pain. But how did we get to the point where the all-out attack option seems like the only option?

As a doctor who specializes in treating patients for back pain, here’s what I wish more patients suffering from chronic pain knew.

When it comes to strong painkillers and increasingly invasive surgeries, bigger is not better. While surgery is the right option for some, the culture of pain management in the United States has produced the myth that the more invasive and aggressive the technique, the more effective it is. This over-reliance on aggressive techniques, especially opioids and invasive surgeries, puts last resorts at the front of the line while ignoring a range of safer and frequently more effective treatments — injections, vertebral augmentation, stem cell therapy or radiofrequency ablation, to name a few.

Simply put, the more aggressive and invasive techniques have not demonstrated that they produce better results. People aren’t automobiles. Our bodies can’t be put back together quickly or without some downside from surgery. While the more invasive repair may be better for your car, when it comes to people, the less invasive the technique, the better the patient recovery will be.

The primary consequence of the bigger is better mentally has produced a dangerous dependence on opioids for treating non-cancer pain and post-surgical pain. Opioids may be necessary for a relatively comfortable recovery after surgery, but normally not for more than four to six weeks. Recent research published in the Journal of the American Medical Association (JAMA) estimates that six percent of patients prescribed opioids after surgery become persistent opioid users. Chronic opioid use has ruined countless lives, so any treatment relying on opioids should only be considered a last resort.

Furthermore, it’s not clear that invasive surgeries are effective for patients. As an example, one of the most common pain management procedures is lumbar spinal fusion surgery, which is often used to treat chronic lower back pain. A new study from the medical journal Spine indicates 20 percent of patients undergo another operation within four years of an initial spinal fusion. Patients can only hope they’re not the unlucky one out of five sitting in the doctor’s waiting room who will be back for a second operation.

Pain sufferers should know that the vast majority of their chronic pain could be helped with simple, less invasive procedures without having to make an incision. When patients are referred to my office, I start with the least invasive options before moving on to surgery and more definitive techniques.

Instead of having patients go under the knife and prescribing them opioids, many of my patients suffering from chronic lower back pain have experienced tremendous results with radiofrequency ablation, which uses radiofrequency energy to deactivate a nerve that transmits pain from a patient’s lumbar disc.  This procedure can be done with a needle during an outpatient visit, and it often provides instant relief that can last for years.

Other procedures include epidural steroid injections (ESIs) and vertebral augmentation surgery. Both are minimally invasive options that help relieve acute and chronic pain.

Epidural injections relieve a variety of conditions, including sciatica, herniated discs and spinal stenosis. During an ESI, a surgeon or interventional pain physician injects a local anesthetic and a steroid into the epidural space, providing swift pain relief for the region. While this relief only lasts for a few weeks or months, it provides patients with enough time to continue working on their physical therapy and for the underlying pathology to heal.

Vertebral augmentation is an injection of a cementing agent into a vertebra in order to stabilize a vertical compression fracture (VCF). VCFs can result in severe deformity and extreme pain, and vertebral augmentation can help fix this injury with minimal complication or risk.

For patients suffering the disabling effects of chronic back pain, it’s important to know there are alternatives to opioids and invasive surgeries; not only radiofrequency ablation, but a whole range of minimally-invasive techniques. In the end, surgery may be necessary — but for many, these other options will prove to be not only safer, but also more effective.

(Editor’s note: For another view on ESI’s and their risks, see Dr. Margaret Aranda’s column, “5 Things to Know About Epidural Steroid Injections.”)

Dr. Doug Beall is a Fellow of Interventional Pain Practice, a Diplomate of the American Academy of Pain Management and is the Chief of Services at Clinical Radiology of Oklahoma, specializing in interventional musculoskeletal care.

The information in this column should not be considered as professional medical advice, diagnosis or treatment. It is for informational purposes only and represents the author’s opinions alone. It does not inherently express or reflect the views, opinions and/or positions of Pain News Network.

4 Alternative Therapies That Help Lower Pain Levels

By Barby Ingle, Columnist

This is the 11th month of my series on alternative therapies for chronic pain management. As I have stressed month after month, each of us is different, even if we are living with the same diseases. No one treatment works for everyone. We must find creative and effective ways to get our pain levels lower.

This month I am shining a spotlight on four treatments that may help you or your loved one in chronic pain: Quell, radiofrequency ablations, reflexology and sonopuncture, also known as sound therapy. I have tried all four of these treatments with varying degrees of success.

Quell

Quell is a wearable medical device that uses electric nerve stimulation to deliver relief from chronic pain. I have tried this device and passed it on to some of my friends with back, arthritis, nerve, leg and foot pain. For me, the relief was not as significant as I had hoped, but I have a friend who has used it daily for a year and swears that it helps her leg pain.

NeuroMetrix, the maker of Quell, designed the device to be worn on the upper calf muscle. It was small enough to wear under my sweatpants and not too big or bulky to get in the way. The device sends neural pulses through the central nervous system to the brain to trigger the body’s own pain blockers. It has a variety of stimulation patterns and sleep modes, and the intensity of therapy can be adjusted through an app.

If you have tried a TENS unit or Calmare and gotten some relief, this might be a successful tool to help you manage your pain. A Quell starter kit costs $249. Each unit comes with the device, leg band, two electrodes and charging cords. You have to replace the electrodes about every two weeks with normal use, but the battery is rechargeable.

I believe Quell is an option that is worth looking into and they have a 60-day moneyback guarantee if it doesn’t help you.

image courtesy neurometrix

Radiofrequency Ablation

Radiofrequency ablation (RFA) uses heat to stop the transmission of pain. Radiofrequency waves “ablate” or burn the nerve that is causing the pain. The nerve stops sending pain signals until it regrows and heals from the ablation. RFA is most commonly used to treat chronic pain caused by arthritis and peripheral nerve pain.

I had RFA procedures 36 times from 2005 to 2008. It never took my pain away but did lower my pain levels and helped take the edge off. The doctor performed them on the ganglion nerve bundle in my neck. My insurance covered the procedures and it was helpful in keeping the need for high dose pain medications down.

RFA procedures are typically done in an outpatient setting under local anesthetics or conscious sedation anesthesia. The procedure is done under guidance imaging, like a CT scan or by ultrasound machine, by an interventional pain specialist.

RFA is said to help in treating the desired nerve without causing significant collateral damage to the tissue around where the ablation is performed. Still, a patient should take precautions and understand that the ablation can cause trauma or injury to the body, and conditions such as CRPS or arachnoiditis can be exacerbated long-term with this treatment.

When I was having RFA, it was one of the only options I had access to. Once less invasive options became available to me, I opted to stop these and nerve blocks all together.

Reflexology

Reflexology involves the application of pressure to the feet and hands with thumb, finger, and hand techniques. Reflexology is very relaxing and calming for me but there is no consensus among reflexologists about how it works, and some technicians are better at it than others.

Practitioners believe that there are specific areas in the hands and feet that correspond with organs in the “zones” of the body. There are five zones on each half of the body that reflexologists work on. In theory, they help stimulate blood flow and better blood flow leads to better working organs and muscles

The research on reflexology is skimpy and it has not been proven as an effective treatment for any medical condition.  It’s more of an approach to health lifestyle living, which can be of benefit to pain patients. This can help lower blood pressure and relax a pained body by taking the edge off.

I can say reflexology did seem to help with my constipation issues, but I was doing it while taking OTC and prescription strength medications, as well as stretching and stomach massages.

Sonopuncture

Sonopuncture is also known as vibrational or sound therapy. The idea behind it is similar to that of acupuncture, although instead of needles they use sound waves. Sonopuncture practitioners believe that sound waves stimulate the body into healing.

Sonopuncture was recently highlighted on an episode of “Keeping Up with the Kardashians” when Kendall Jenner was going through some anxiety challenges. I have used sound therapy myself to help with the stress of living with chronic pain and find it relaxing and mentally therapeutic.

Typically, the patient lays down in a comfortable position on the floor or a massage table. The practitioner will used tools like a tuning fork, glass bowls, chimes, metal or electronic devices that emit harmonic sounds or vibrations on acupressure points for about a minute each.

This is a noninvasive therapy and is suitable for all ages. Since no needles are involved, it could be seen as an alternative to acupuncture. With one in four patients afraid of needles, this could be a great way to calm your nerves and mind to help manage the challenges of living with chronic pain.

If you are considering any of these alternative treatments, I encourage you to first talk with a medical professional who is familiar with your past and present care and can help you discover what would be appropriate for you.

Barby Ingle lives with reflex sympathetic dystrophy (RSD), migralepsy and endometriosis. Barby is a chronic pain educator, patient advocate, and president of the International Pain Foundation. She is also a motivational speaker and best-selling author on pain topics.

More information about Barby can be found at her website. 

The information in this column should not be considered as professional medical advice, diagnosis or treatment. It is for informational purposes only and represents the author’s opinions alone. It does not inherently express or reflect the views, opinions and/or positions of Pain News Network.