Blacks and Hispanics More Likely to Develop Chronic Back Pain

By Pat Anson, PNN Editor

Chronic lower back pain is the leading cause of disability worldwide, with an estimated 72 million people suffering from it in the United States alone.   

New research suggests that Black and Hispanic Americans are significantly more likely to develop “high-impact” lower back pain than Whites. High impact pain is chronic pain that lasts at least six months and is severe enough to interfere with daily life or work activities.

Researchers at Boston Medical Center analyzed health data for over 9,000 patients experiencing acute lower back pain, who were being treated at primary care practices in the Baltimore, Boston, Pittsburgh and Salt Lake City areas.

After six months, patients who were Black (30%) or Hispanic (25%) were more likely than White patients (15%) to develop high impact chronic lower back pain. The Black and Hispanic patients were more likely to be younger, female, obese, have Medicaid insurance, and at higher risk of disability. They were also about half as likely to be prescribed opioids than Whites after their initial visit to a doctor.

“Our study has highlighted both a concern in the absolute number of patients with acute low back pain who develop chronic low back pain and concerns about racial and ethnic disparities in outcomes,” said lead author Eric Roseen, DC, director of the Program for Integrative Medicine and Health Disparities at Boston Medical Center.

“High-impact chronic pain has a negative impact on the lives of millions of Americans, particularly Black Americans, yet possible and significant causes of racial and ethnic disparities in long-term pain outcomes remain understudied and largely unaddressed. The disparities that emerged in this study shed light on the direct correlation among lived experiences, physical, and mental health, which must be addressed in order to improve patient outcomes.”

Roseen and his colleagues reported in the journal Pain Medicine that the risk of developing high-impact chronic pain was highest among Black women. They attribute that partially to socioeconomic reasons, suggesting that racial and ethnic differences in health insurance or neighborhood resources may impact the long-term outcomes of patients with new episodes of low back pain. 

Getting effective treatment for low back pain is problematic, regardless of race or ethnic group. A recent Harris Poll of over 5,000 U.S. adults found that over a third of those with chronic low back pain have never been told by a healthcare professional what causes their pain. Nearly half said they’ve experienced back pain for at least five years.

The survey found the typical back pain sufferer had sought relief from at least three different healthcare providers. About one in five had epidural steroid injections, which were rated as one of the least effective treatments for chronic low back pain. Opioid pain medication was rated as the most effective treatment, slightly ahead of physical therapy, chiropractic care and acupuncture.

FDA Approves Smallest Rechargeable Spinal Cord Stimulator

By Pat Anson, PNN Editor

The Food and Drug Administration has approved a new spinal cord stimulator that’s being touted as the smallest implantable neuromodulation device of its kind on the market. Abbott’s Eterna stimulator can also be recharged wirelessly as few as five times a year, unlike other stimulators that need recharging daily or weekly.

Spinal cord stimulators (SCSs) are an invasive treatment of last resort for people with chronic back or leg pain. The devices are surgically implanted near the spine and connected to batteries placed under the skin. The implants send low-level electrical impulses into the spine to block pain signals.

Abbott says it developed Eterna after extensive studies with pain patients and healthcare providers, who wanted a smaller implant with less need for recharging.

Eterna utilizes the company’s BurstDR stimulation, which mimics the natural firing patterns of nerves to provide pain relief without the tingling sensation of other simulators.

"Abbott's low-dose BurstDR stimulation is clinically proven to reduce pain, improve people's ability to perform everyday activities, and reduce emotional suffering associated with pain," Timothy Deer, MD, president and CEO of the Spine and Nerve Centers of the Virginias, said in a statement provided by Abbott.

ABBOTT IMAGE

"Until now, it wasn't available on a rechargeable device that was this small, and that only needs to be charged a few times a year. This makes a big difference in comfort for many patients who now can have access to the best of both worlds – a small, best-in-class rechargeable device with superior stimulation therapy."

Another advantage of the Eterna SCS system is that patients with the device can still have full-body MRI scans – a critical need for those who need access advanced imaging and diagnostics. The devices can also been monitored and programmed with a mobile app.

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.

A recent study found that premise to be untrue. Researchers at the University of California San Francisco School of Medicine found that pain patients with stimulators did not reduce their use of opioids, epidurals, corticosteroid injections or radiofrequency ablation compared to a control group. About a fifth of the patients experienced complications so severe the devices had to be removed or revised.

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

SCS’s are no longer limited to patients with intractable back and neck pain. Last year the FDA expanded the use of stimulators to include lower limb pain from diabetic neuropathy.  Stimulators are also being used on patients with Complex Regional Pain Syndrome (CRPS).

4 Oldies But Goodies That Relieve Back Pain

By Dr. Forest Tennant, PNN Columnist 

In our studies, we routinely review persons with adhesive arachnoiditis (AA), Ehlers-Danlos Syndrome, Tarlov cysts and Epstein Barr autoimmunity. Our bulletins have, for the last two years, focused on new discoveries such as autoimmunity, medicinal agents, spinal fluid flow exercises, MRIs and laboratory testing.  

It’s a little embarrassing, but we haven’t sufficiently emphasized that some older treatments can still bring a lot of relief.  

AA causes considerable imbalance and unusual stretches to the muscles, tendons, nerves, and joints in the back, hips and pelvis. Consequently, these tissues become sprained, strained and inflamed. Many “old-time” measures can heal these tissues and enhance comfort and mobility. Here is a short summary of four that will be around for a long time since they simply provide comfort and relief. 

1. Ultrasound: Several years ago, we started using ultrasound for AA. The theory is that it may break up adhesions. While this may or may not happen, ultrasound often provides immediate relief that can last days or weeks. Medications such as cortisone cream can also be administered during ultrasound, which boosts their effectiveness. There are now hand-held ultrasound devices that can be purchased for use at home. 

2. Epsom Salts: Foot baths with minerals are convenient and soothing. Epsom salt baths are generally believed to “pull out” or detoxify the body of excess electricity and toxins. They can be most helpful for burning feet sensations and stabbing pains in the legs. 

3. Heating Pad: Heat dilates blood vessels, which brings more oxygen to the treated area and promotes healing. Heat also relaxes muscles that may be in spasm. 

4. Transcutaneous Electrical Nerve Stimulation (TENS): Electrical currents act as an anesthetic on nerves and nerve roots. Pain in persons with AA may temporarily abate when an electric current is administered over the lower back. TENS can often break a flare.

The human body has remained unchanged for thousands of years. Remedies and treatments discovered long ago may still be applicable today. AA has many associated conditions including spinal fluid leaks, inflammation in tissues around the spine, muscle spasm, and radiating pain among others. Some “old-time” treatments may be a welcome adjunct to the 3-component medical protocols.

Forest Tennant, MD, DrPH, is retired from clinical practice but continues his research on the treatment of intractable pain and arachnoiditis. This column is adapted from an updated bulletin recently issued by the Arachnoiditis Research and Education Project. Readers interested in subscribing to the bulletins should click here.

The Tennant Foundation gives financial support to Pain News Network and sponsors PNN’s Patient Resources section.  

Smoking Marijuana More Effective Than CBD Extracts for Back Pain

By Pat Anson, PNN Editor

One of the reasons many medical marijuana users prefer edibles over smoking is that they are perceived as healthier.  Marijuana smoke contains many of the same chemicals and carcinogens as cigarette smoke, and could have harmful effects on people with respiratory or cardiovascular problems.

But a small new study conducted in Israel found that smoking marijuana is better than ingesting it, at least when it comes to treating chronic lower back pain. Researchers enrolled 24 adults with MRI or CT scans that showed evidence of disc herniation or spinal stenosis, and had them try two different types of cannabis treatment.

The first was a cannabis extract rich in cannabidiol (CBD), which was taken sublingually under the tongue daily for 10 months. After a month of no treatment, the same group smoked cannabis flowers rich in tetrahydrocannabinol (THC) up to four times a day for 12 months. Participants were allowed to take pain medication as needed, including oxycodone and acetaminophen.

The study findings, published in the Rambam Maimonides Medical Journal, showed there was little to no improvement in back pain when participants took the extract, but significant improvement when they smoked cannabis. The use of analgesic drugs also dropped significantly while smoking.

Notably, three patients dropped out of the extract phase of the study because it wasn’t helping them, but then returned to participate in the smoking phase.

“The current study is the first, to our knowledge, to indicate that THC-rich smoked therapy is more advantageous in ameliorating LBP (lower back pain), than low THC CBD-rich sublingual extracts. Despite the small number of patients, our data indicate that THC-rich smoked therapy is helpful in mitigating LBP,” researchers reported.

The most commonly reported adverse events during the study were nausea, dizziness, drowsiness and fatigue during the extract phase; sore throat and drowsiness were reported during the smoking phase. All of the adverse symptoms disappeared after a dose tolerance was reached. Most of the adverse effects were in female patients.

A 2019 study of medical marijuana users also found that smoking cannabis provided more pain relief than ingesting it. Over 3,300 people logged their symptoms on a mobile app while using a variety of cannabis products, including dried flower, edibles, tinctures and ointments. Smoking the dried flower provided more pain relief than any other cannabis product, regardless of the amount of THC.

Another problem with CBD edibles is that they are frequently mislabeled. A recent study of 80 CBD oils found that only 43 had concentrations of cannabidiols that were within 10% of their label claims – an accuracy rate of just 54 percent.

FDA Approves Device That Uses Artificial Intelligence to Treat Chronic Pain

By Pat Anson, PNN Editor

The Nevro Corporation says it has won approval from the Food and Drug Administration for an advanced spinal cord stimulator (SCS) that uses artificial intelligence to individualize treatment for each patient.

Nevro says its Senza HFX iQ stimulator “learns from patients” as they use the device and develops customized algorithms for treating chronic back pain, leg pain and pain from diabetic neuropathy.

"HFX iQ is designed to improve the consistency of pain relief and is the only SCS system that truly personalizes care," D. Keith Grossman, Chair and CEO of Nevro, said in news release.

"Pain is variable from patient to patient and over time. Using the big data from our HFX Cloud patient database, our unique HFX Algorithm was developed to identify those programs where patients have been more likely to get relief in the real world.  HFX iQ takes direct input from each patient on their pain and quality of life measures to get smarter over time and recommend program changes.”

Nevro says patients will start with a program most likely to provide pain relief, and then adjusts it over time based on patient input and medical data, such as pain scores, activity levels and changes in use of pain medication. Patients can also adjust their pain relief programs through an app on their smartphones.

Spinal cord stimulators are usually considered the treatment of last resort for people with intractable or severe chronic pain that doesn’t respond to other therapies. The surgically implanted devices emit low levels of electricity that reduce the intensity of pain signals.

Unlike older stimulators, Senza stimulators use electric pulses of 10 kHz, a high frequency that doesn’t create an uncomfortable tingling sensation and delivers more pain relief. Last year the FDA approved Senza stimulators for the treatment of painful diabetic neuropathy, making it the first spinal cord stimulation system approved for that condition. Until then, most SCS devices were only approved for patients with severe back pain.

About 50,000 stimulators are implanted in the U.S. every year, with failure rates for the devices estimated at 25 to 30 percent. Most patients are required to undergo psychological testing and a trial treatment before getting a SCS.

The FDA has come under scrutiny for its regulation of stimulators and other medical devices.  A 2020 report by Public Citizen accused the FDA of “dangerously lax” oversight of stimulators, which were linked to 156,000 injuries and 931 deaths.  The agency responded to the report by sending a letter to healthcare providers reminding them to only implant stimulators after a trial period that demonstrates the device are effective. An FDA review of adverse events involving stimulators found that nearly a third were reports of unsatisfactory pain relief.

Nevro says it will begin a limited release of Senza HFX iQ later this year, with a full market launch in the U.S. in early 2023. Nevro is also seeking approval of HFX iQ in Europe.  

Time to Reject the Label ‘Failed Back Surgery Syndrome’

Dr. Forest Tennant, PNN Columnist

In our research studies on Adhesive Arachnoiditis (AA), a high percentage of patients tell us that their doctors have said the cause of their pain is “Failed Back Surgery Syndrome” (FBSS).

This misnomer and poor excuse for a diagnosis has fortunately been rejected “out-of-hand” as a cause of pain by most upscale physicians. After all, FBSS is neither a disease nor a symptom. We can do better in 2022.

Some three or four decades ago, FBSS became a popular moniker used by most physicians, including this author. Why? Patients who had back pain underwent surgery, which was technically and expertly done, but the pain didn’t go away. This situation was a mystery in times past, but the label FBSS should never be used or applied in this day and age.

Today, magnetic resonance imaging (MRI) has advanced so much since its invention in the late 1980’s that painful disorders and diseases of the spine can almost always be diagnosed. There is now a technique called “contrast MRI” that allows a clear distinction to be made between spinal fluid and solid tissues, including the spinal cord, discs, nerve roots and covering of the spinal canal.

In our recent research studies, we have reviewed contrast MRIs in well over 200 persons who have been labeled as having FBSS. Every person had one or more obvious reasons to have chronic pain, despite well-done, competent surgery. For example, our reviews have found discs that have protruded, adhesive arachnoiditis, epidural fibrosis, spondylolisthesis, Tarlov Cysts, arthritic vertebra or other good, solid reasons to have pain, regardless of surgery.

Let’s be clear. Spine surgery may be necessary for a number of reasons, the most common being significant herniation of a disc or collapse of vertebrae that may dangerously compress the spinal canal. It also may be fair to say that a lot of surgery can now be avoided, since eminent danger and need for surgery is pretty clear cut on modern, contrast MRI’s.    

In addition to contrast MRIs, we now have good diagnostic tests for inflammation, autoimmunity and genetic connective tissue disorders, which are emerging as legitimate causes of severe, chronic back pain that hasn’t responded to chiropractic, physical therapy, anti-inflammatory agents and corticosteroid injections.

Put simply, the diagnostic evaluation of severe chronic back pain needs a contrast MRI and specific diagnostic tests rather than a non-descript, “wastebasket” diagnosis like FBSS.

Perhaps the worst thing about the label FBSS, is that it is easy to apply and avoids the time, money and knowledge to make a specific diagnosis. These excuses to avoid a specific diagnosis must now be rejected because we have the diagnostic and treatment measures to better the lives and health of those who suffer from severe chronic back pain.

Forest Tennant, MD, DrPH, is retired from clinical practice but continues his research on the treatment of intractable pain and arachnoiditis through the Tennant Foundation’s Arachnoiditis Research and Education Project and the Intractable Pain Syndrome Research and Education Project.

The Tennant Foundation gives financial support to Pain News Network and sponsors PNN’s Patient Resources section.   

Over 72 Million Americans Suffer Chronic Low Back Pain

By Pat Anson, PNN Editor

Nearly 3 out of 10 U.S. adults – 72.3 million people – currently suffer from chronic low back pain, surpassing the number of Americans who have arthritis, diabetes or heart disease, according to a large new Harris Poll. Over a third of those surveyed (36%) rate their back pain as “severe” or the “worst pain possible” and nearly half (44%) said they’ve experienced back pain for at least five years.

Over 5,000 adults participated in the online survey, which was sponsored by Vertos Medical, a company that makes medical devices to treat lumbar spinal stenosis (LSS).

One of the major findings in the survey is that over a third (37%) of adults with chronic low back pain (CLBP) have never been told by a healthcare professional what causes their pain. The vast majority (84%) say they wish there were better treatment options for CLBP.

"These survey results demonstrate that people with chronic low back pain are suffering greatly over long periods of time, and many have resigned themselves to living in a debilitated state," Kathy Steinberg, Vice President of Media and Communications Research at The Harris Poll, said in a statement. "The fact that more than a third are not being told what is causing their pain, such as LSS or an enlarged ligament, makes it more difficult to treat that pain.”

Lower back pain is the leading cause of disability, affecting about 540 million people worldwide. With so many people suffering, you'd think there would be a consensus on the best way to treat CLBP. But a 2018 review by The Lancet found that low back pain is usually treated with bad advice, inappropriate tests, risky surgeries and painkillers -- often against treatment guidelines.

The Harris Poll found that many Americans with CLBP are being treated with ineffective therapies, resulting in multiple visits to multiple doctors. On average, the typical back pain sufferer has sought relief from at least three healthcare providers, with an average of 4 office visits in the last year.  

Over one in five (21%) have had epidural steroid injections (ESIs), with 37% having 5 or more injections. ESI’s are not FDA-approved and the agency has warned that injections into the epidural space can result in rare but serious neurological problems, including loss of vision, stroke and paralysis. ESI’s were rated as one of the least effective treatments for CLBP in the Harris Poll.

Nearly a third of those surveyed (30%) said they have been prescribed opioids and 15% said they are currently taking them, even though medical guidelines caution that opioids are not appropriate for CLBP.

Opioids may not be recommended, but nearly 8 out of 10 (79%) said the medications were very or somewhat effective, making opioids the highest rated treatment for CLBP, slightly ahead of “conservative or eastern medicine” treatments such as physical therapy, chiropractic care and acupuncture.

Source: The Harris Poll

About half of those surveyed say CLBP has a major or moderate impact on their quality of life (53%), physical health (50%) and mental health (39%). Most strongly agree or somewhat agree (78%) that they have accepted CLBP as a part of their life.  

For more information about treatment options for CLBP, visit Know Your Back Story, a website hosted by Vertos Medical that promotes treatments for lumbar spinal stenosis.

Physical Therapy Reduces Healthcare Costs for Low Back Pain

By Pat Anson, PNN Editor

Almost everyone suffers from low back pain at some point in their lives. Most recover in a few days, but for some the pain lingers and become chronic, making low back pain the world’s leading cause of disability.  

Why are some people able to recover quickly from low back pain?

For many, the answer may be early treatment with physical therapy (PT), according to a new study by researchers at Johns Hopkins Medicine.   

“Our goal was to determine if early PT for patients with lower back pain had an impact on their overall health care resource utilization,” says senior author Richard Skolasky Jr., ScD, director of the Johns Hopkins Spine Outcomes Research Center. “We were especially curious about the 30 days after initial symptom onset, as this is when patients are most likely to seek care.” 

Skolasky and his colleagues analyzed healthcare data from 2010 to 2014 for nearly a million U.S. adults with acute low back pain, excluding those suffering from serious disorders such as arthritis or spinal cord injuries. About 10% of the patients received early treatment with physical therapy.

The study findings, recently published by BMC Health Services Research, showed that patients getting early PT were significantly less likely to see a chiropractor, orthopedic surgeon or pain specialist after 30 days than those who did not get physical therapy. They were also less likely to get advanced imaging, epidural steroid injections or to visit an emergency room.

Researchers estimate that healthcare costs for a typical patient getting early PT was about $500 less over 30 days than those not receiving physical therapy.

Another key finding from the study was significant geographical differences in the use of physical therapy. Patients in the West (16%) and Northeast (15%) were nearly twice as likely to get early PT than those in the Midwest (9.4%) and South (8.6%). The authors offered no explanation for why treatment patterns varied so much by region.

The study did not specifically examine whether physical therapy benefits patients with low back pain more than other forms of treatment, but the findings suggest that they did. Researchers say health outcomes should be examined more closely in future studies.

“As the U.S. population ages, the prevalence of lower back pain is expected to increase, along with the associated costs of treating it,” says Skolasky. “Furthermore, with advances in imaging and treatments, the cost of managing lower back pain has increased substantially. Our findings have important implications that may guide health care policy when examining downstream health care costs and resource utilization.” 

Previous studies have found that physical therapy and regular exercise significantly reduces low back pain. Other studies also found little evidence to support the use of opioids, spinal injections and acetaminophen for low back pain.  

Electromedical Treatments for Arachnoiditis

By Dr. Forest Tennant, PNN Columnist  

Adhesive Arachnoiditis (AA) is an inflammatory, nerve root entrapment disease in which cauda equina nerve roots are glued by adhesions to the arachnoid-dural covering of the spinal canal. An inflamed tumor-like mass is formed inside the spinal canal that blocks spinal fluid flow, allows seepage of fluid into tissue outside the spinal canal and shuts off electrical impulses that activate the legs, feet, bladder, intestine and sex organs. Autoimmunity is produced and/or magnified by AA. 

We highly recommend a three-component protocol for AA to reduce inflammation and autoimmunity, regenerate damaged tissue and to provide pain control. Recent advances in electromedical therapies can help achieve these three goals. 

There are two basic types of electromedical devices available for AA treatment: electric current therapy (EC) and electromagnetic therapy (EM). 

Electric Current Therapy 

Almost everyone is familiar with “TENS” units, which stands for “transcutaneous electrical nerve stimulation.” These devices were the first electromedical therapies to relieve pain and promote healing.

TENS units deliver a single electric current into tissues to produce an anesthetic, pain relieving effect.  

Today, more advanced EC devices administer micro-currents and/or a combination of multiple currents with different frequencies. 

Electromagnetic Therapy 

There is a form of energy that is half electricity and half magnetism, which can be divided into wave lengths. The very shortest wave of electromagnetic energy is “atomic” and the longest is “radio.” The shortest wave used in medicine is “laser.” Other electromagnetic energy waves used for medical purposes include infrared, light and microwave. 

EC and EM devices, when placed over the lower back, deliver electric current or electromagnetic energy to the lumbar-sacral spinal canal and the spine’s surrounding tissue.

Modern devices use intermittent pulsation of electric currents or electromagnetic energy to penetrate the skin and subcutaneous tissue to reach the AA site, which is usually about 2-3 inches below the skin.  

Some devices use the label PEMF, which stands for “pulsed electromagnetic frequency.” We believe that the newer EC and EM devices can deliver electric currents or electromagnetic energy that, when pulsed, penetrate deep enough to reach the AA disease site. 

Although not totally curative, these devices usually bring about pain reduction in the 20 to 30% range. Within an individual’s financial capability, we recommend that an EC and/or EM device be used 2 to 3 times a week (not daily). EC and EM therapy are not substitutes for a medical protocol. 

EM and EC devices often produce some initial healing, but later seem to stop working. In this situation the device may have done its maximal healing. The devices can still be used periodically to prevent relapses and treat flares. 

Forest Tennant, MD, DrPH, is retired from clinical practice but continues his research on the treatment of intractable pain and arachnoiditis. This column is adapted from a bulletin recently issued by the Arachnoiditis Research and Education Project. Readers interested in subscribing to the bulletins should click here.

Dr. Tennant’s new book, "Clinical Diagnosis and Treatment of Adhesive Arachnoiditis” is available on Amazon. 

The Tennant Foundation gives financial support to Pain News Network and sponsors PNN’s Patient Resources section.   

Injectable Gel Shows Promise as Treatment for Back Pain

By Pat Anson, PNN Editor

An experimental gel shows promise as a treatment for low back pain caused by degenerative disc disease (DDD), according to the results of a small study being presented at the annual meeting of the Society of Interventional Radiology in Boston.

Hydrogels have been used for years to treat DDD, but this is the first time that Hydrafil – an injectable gel developed by ReGelTec – has been tested on humans.

Hydrafil was injected into the discs of 20 people in Colombia with chronic DDD, who had average pain levels of 7.1 on a 10-point pain scale. None of the participants had found more than temporary, mild relief from treatments such as rest, analgesics, physical therapy and back braces.

“We really have no good treatments for degenerative disc disease, aside from conservative care,” said lead investigator Douglas Beall, MD, a medical advisor to ReGelTec and chief of radiology services at Clinical Radiology of Oklahoma.

“Surgery is statistically no more effective than conservative care and can potentially make things worse; nerve ablation is appropriate for only a few patients; and existing hydrogels are inserted through an incision as a soft solid, which can pop out of place if you’re not highly skilled in placing it.”

Because Hydrafil is injectable, it requires no incision and is minimally invasive, although patients are sedated for the procedure. Researchers heat the gel to become a thick liquid and then use a 17-gauge needle to inject it directly into the affected discs, using fluoroscopic imaging to guide them. The gel fills in cracks and tears in the disc, and then hardens, restoring the disc’s structural integrity. The procedure takes about 30 minutes.

This promotional video by ReGelTec demonstrates how Hydrafil works:

Six months after the injection, all 20 participants in the study reported significantly less low back pain, with their pain levels declining to an average of 2.0 on the 10-point pain scale. They also reported significantly better physical function.

“If these findings are confirmed in further research, this procedure may be a very promising treatment for chronic low back pain in those who’ve found insufficient relief from conservative care,” said Beall. “The gel is easy to administer, requires no open surgery, and is an easy procedure for the patient.”

In 2020, Hydrafil received the FDA’s breakthrough device designation, which allows for an expedited review of an experimental product when there is evidence it provides more effective treatment than current options.

ReGelTec is currently recruiting 50 people with DDD in Canada for a new clinical trial of Hydrafil.

Degenerative disc disease is one of the leading causes of chronic low back pain. Healthy discs cushion the spine’s vertebrae, facilitating movement and flexibility. But with activity and normal aging, discs can wear out and cause the bones of the spine to rub together and pinch nerves, causing pain and numbness. By age 60, most people have at least some disc degeneration in their spines.

Patient in Tulsa Hospital Shooting Was Angry About Pain Care

By Pat Anson, PNN Editor

The gunman who killed four people Wednesday at an Oklahoma hospital recently had back surgery and was angry about his post-operative pain not being treated, according to police and media reports.

Michael Louis shot and killed Dr. Preston Phillips, the surgeon who performed the operation, as well as another doctor, a medical receptionist and a bystander who took his wife to an appointment at Saint Francis Hospital in Tulsa. The 45-year-old Louis fatally shot himself as police closed in.

“What we currently know is that Louis was in pain, Louis expressed that he was in pain and was not getting relief and that was the circumstance surrounding this entire incident,” said Tulsa Police Chief Wendell Franklin. “He blamed Dr. Phillips for the ongoing pain that came from the surgery.”

Phillips was an orthopedic surgeon who specialized in spinal surgery and joint reconstruction. He graduated from Harvard Medical School in 1990.

No details have been released on what type of back surgery Louis had or what kind of pain medication he was given. According to a niece, he suffered from back pain for “a long time.”

“We are aware that he has been experiencing back pain for a long time but [there is] no reason for this senseless act,” the niece told The Daily Beast. “We are a Christian-based family. We have never experienced this before.”

Police say Phillips operated on Louis on May 19. Louis was released from the hospital on May 24, but called “several times over several days complaining of pain and wanted additional treatment,” according to Franklin. Louis had an appointment with Phillips on Tuesday, the day before the shooting, but it’s not clear if any further pain relief was offered to him.

In the days following his surgery, Louis was living in the home of his ex-wife, Dr. Edith Lubin, a family practice physician. Her lawyer released a statement saying Lubin had no knowledge of her former husband possessing a gun or having “any intent of harming anyone.”

“Dr. Lubin is praying for the families of all those affected. She acknowledges everyone’s concerns in understanding what happened, but she is at a loss for an explanation, other than the effect of continuing pain to Mr. Louis during his recovery,” the lawyer said in a statement to a KJRH-TV reporter.

Louis bought a handgun on Sunday and a semiautomatic rifle on Wednesday afternoon, just hours before the shooting. Both weapons were legally purchased, according to police.

Franklin said a letter found on Louis after the shooting “made it clear that he came in with the intent of killing Dr. Phillips and anyone who got in his way.”

Asked whether opioids were involved in Louis’ treatment, Franklin said investigators have only established that he was in pain and that other details about his care were still being investigated, according to The Washington Post.

‘Just a Matter of Time’

In recent years, many U.S. hospitals have stopped or reduced the use of opioids after surgery, fearing patients may become addicted. Non-opioid analgesics and over-the-counter pain relievers such as Tylenol are increasingly being used to treat post-operative pain.

"Out of all the hospital systems in Oklahoma, I have heard the most about the horrible pain treatment at St. Francis,” said Tamera Lynn Stewart, an Oklahoma patient advocate and Policy Director for the P3 Political Action Alliance. “I know so many who have had surgery there and received Tylenol only or who see doctors there that claim they aren’t allowed to prescribe." 

Opioid addiction is actually rare after surgery. Studies have found that less than 1% of patients are still taking opioids a year after major surgery or were later diagnosed with opioid dependence.  

With their pain poorly treated or left untreated, Stewart says some desperate patients in Oklahoma have threatened to kill themselves on the steps of the state capitol to make a statement. The mass shooting at the Tulsa hospital, while tragic, was not unexpected to her. 

“While our hearts are grieving with the families and victims, few in our grassroots communities built to advocate for appropriate treatment of pain without government or third-party interference can say this was completely unexpected. Veterans have committed suicide at VA’s across the country for the same reason,” Stewart told PNN. 

“Most of us knew it was just a matter of time before someone who could no longer bear the unrelenting pain did something more drastic in order to get the attention needed to end the restrictions (on opioids) and begin the much-needed process of swinging the pendulum back to a more neutral position.” 

Long before Tulsa, there were other cases where people in pain resorted to drastic action. In 2017, a man suffering from chronic back pain shot and wounded two people at a Las Vegas pain clinic before taking his own life.   

That same year, an Indiana doctor was fatally shot by a man who was upset because the physician refused to prescribe opioids to his wife, who suffered from chronic pain.

Virtual Reality Shows Long Term Benefits for Chronic Low Back Pain

By Pat Anson, PNN Editor

Critics of virtual reality therapy often say it’s a poor treatment for chronic pain because it only distracts patients from their pain and that the effects are temporary, at best.

But new research suggests that the benefits of virtual reality (VR) can last six months after treatment has stopped – at least for patients with chronic low back pain.

The study, published in the Journal of Medical Internet Research, followed 188 people with chronic low back pain who had an average pain intensity score of 5 on a zero to 10 point scale.

Half the participants were given an EaseVRx headset to watch 3-D programs daily for 8 weeks, immersing themselves in a “virtual” environment where they can swim with dolphins, play games or enjoy beautiful scenery. The goal is help patients learn how to manage pain through cognitive behavioral therapy.  

The other patients also used the EaseVRx headset, but only watched routine nature scenes as a placebo or sham VR treatment.  

JOURNAL OF MEDICAL INTERNET RESEARCH

Patients were followed for six months after treatment was stopped. Participants in both groups reported improvement in their pain and other symptoms six months after treatment, but the improvements were more significant in those who received VR therapy. Pain intensity was 31% lower for patients in the VR group, compared to 16% in the sham group. Physical function, mood, sleep and pain-related interference in activity were also better in those who received VR therapy. No adverse side effects were reported in either group.

“We have been pleasantly pleased and surprised that patients are maintaining clinically meaningful changes in pain intensity and interference 6 months after returning the device. It appears people are actually acquiring skills in a relatively short period that they continue to retain/apply months after treatment,” said Josh Sackman, co-founder and president of AppliedVR, which makes the EaseVRx headset.

AppliedVR is planning more research to see how patients respond long-term to VR treatment. A brain imaging study is being conducted to measure brain activity before, during and after treatment. Patients are also being recruited for a large clinical trial to see how VR therapy impacts pharmacy and medical claims.  

“In order to drive real acceptance, we are committed to extensive research to address any skepticism people may have,” Sackman told PNN.

The EaseVRx headset was given a Breakthrough Device Designation by the FDA in 2020 for fibromyalgia and low back pain. Last year the agency authorized the marketing of the headset for chronic low back pain in adults, the first medical device of its kind to receive that designation.

EaseVRx headsets are currently being used for pain management in over 200 hospitals and healthcare systems. A full commercial launch for home-based use is not expected until next year.

100,000 ‘Unnecessary’ Hospital Procedures Performed in First Year of Pandemic

By Pat Anson, PNN Editor

U.S. hospitals performed over 100,000 “low-value” procedures on Medicare patients in the first year of the Covid pandemic, including tens of thousands of spinal surgeries and knee arthroscopies, according to a recent study by the Lown Institute, a non-profit that seeks to reduce the use of unnecessary and ineffective medical treatments.

In 2020, no vaccines were available, the elderly were particularly vulnerable to the Covid-19 virus, and intensive care units were filled with infected patients. Yet many hospitals continued to perform questionable elective procedures at the same rate they did in 2019.

“You couldn’t go into your local coffee shop, but hospitals brought people in for all kinds of unnecessary procedures,” Vikas Saini, MD, president of the Lown Institute, said in a statement. “The fact that a pandemic barely slowed things down shows just how deeply entrenched overuse is in American healthcare.”

Lown researchers analyzed Medicare claims from U.S. hospitals for eight procedures that the non-profit considers to have “little to no clinical benefit” and are potentially harmful.  

Coronary stents were the most overused procedure, with over 45,000 balloon angioplasties performed to open up blocked arteries. The Lown Institute has long maintained that stents are unnecessary and risky in patients with stable heart disease.

Two spinal surgeries also made the list: 13,541 spinal fusions and 16,553 vertebroplasties were performed on older patients. In vertebroplasty, bone cement is injected into fractured vertebrae to stabilize the spine; while spinal fusions are used to join two or more vertebrae together to prevent them from moving and causing more pain. The Lown Institute considers fusions and vertebroplasties inappropriate for patients with low back pain and osteoporosis.

Nearly 1,600 knee arthroscopies were also performed in 2020, a type of “keyhole” surgery in which a small incision is made in the knee to diagnose and repair ligaments damaged by overuse or osteoarthritis. Recent independent studies have found arthroscopic surgeries provide only temporary relief from knee pain and do not improve function long term.

“There are certain things, certain practices that are just insane. You shouldn’t be doing this. Nobody should pay for this,” said Saini.

Highland Hospital in Rochester, New York was rated as the top hospital in the country for avoiding overuse procedures. Richardson Medical Center in Rayville, Louisiana was ranked as the worst hospital.

The American Hospital Association disputed Lown's ranking system, calling it misleading.

"Throughout the pandemic, but especially in the early months, many nonessential services and procedures were put off due to government restrictions or voluntary actions from hospitals to make room for massive surges of COVID-19 patients," Aaron Wesolowski, AHA's VP of policy research, said in a statement to Becker’s Hospital Review.

"Studies have shown that these delays or sometimes even cancelations in nonemergent care have had some negative outcomes on the health and well-being of patients, who continue to show up at the hospital sicker and with more advanced illnesses. Many of these services may alleviate patients' pain or provide other help to patients. Lown may define these services as 'low value,' but they can be of tremendous value to the patients who receive them."

Emergency Treatment of Arachnoiditis After Spinal Injection

By Dr. Forest Tennant, PNN Columnist

In rare cases, symptoms suggesting adhesive arachnoiditis (AA) may occur after a spinal tap or epidural injection (therapeutic or obstetrical). These early symptoms may include localized lumbar pain, headaches, burning sensations, dizziness, leg weakness and bladder dysfunction. Spinal fluid leaks or blood in the spinal canal are often suspected in these cases.  

If symptoms indicate the possibility that AA may be developing, we recommend emergency treatment to hopefully prevent the spinal nerve inflammation from spreading and becoming chronic. 

A problem that we have routinely discovered is that medical practitioners commonly have the false belief that they can see signs of AA on an MRI when symptoms begin or within a few hours or days after a spinal tap or epidural injection. But AA typically does not show on an MRI for at least four to six weeks. Consequently, early emergency treatment must be based on patient history and symptoms, rather than on MRI findings. 

At the First International Congress on Arachnoiditis and Tarlov Cysts in 2010, physicians Donna Holder and Antonio Aldrete recommended that methylprednisolone 500 mg be given intravenously every day for five days as an emergency treatment for AA.  

Since that time, a variety of intravenous methylprednisolone attempts with different dosages and frequency have been used by physicians as emergency treatment to prevent AA. Dr. Aldrete opined that intravenous methylprednisolone is only effective in preventing AA if given within 60 days after the spinal tap or epidural. 

We have used the following alternative treatments to intravenous methylprednisolone: 

1. Medrol (methylprednisolone) six-day oral dose pack

2. Ketorolac 30 to 60 mg injection for three consecutive days

3. Medroxyprogesterone 10 mg given twice a day for six days

In some, but not all cases, AA symptoms will abate during the week that either intravenous methylprednisolone or the alternative treatments are administered. In most cases, however, symptoms reduce but don’t totally abate. The reason for this is unclear, but a reasonable assumption is that spinal canal inflammation may not be totally reversed once symptoms begin. 

If pain and other symptoms don’t totally abate, we recommend that the patient begin a three-component medical protocol for AA described in this bulletin, which includes nutritional, physiologic and pharmacologic elements. Patients should remain on these medical treatments until and if their pain and other symptoms resolve. 

It is unclear why only a small percentage of persons who have spinal taps or epidural injections develop AA. It is also unknown why symptoms that begin after these procedures usually don’t abate. 

A New Handbook for Practitioners

Our new book, "Clinical Diagnosis and Treatment of Adhesive Arachnoiditis” is now available on Amazon. 

This handbook for medical practitioners has been written for one simple reason.  AA is no longer a rare disease.  We conservatively estimate that there are at least 1.75 to 2.75 million adults in the U.S. who have AA.  

In the past, the cause of their back pain was often listed as unknown or inappropriately labeled as failed back syndrome, degenerative spine or simply low back pain. 

It is our fervent hope that this book will help medical practitioners and their patients diagnose and treat this most debilitating disease.

Forest Tennant, MD, DrPH, is retired from clinical practice but continues his research on the treatment of intractable pain and arachnoiditis. This column is adapted from a bulletin recently issued by the Arachnoiditis Research and Education Project. Readers interested in subscribing to the bulletins should click here.

The Tennant Foundation gives financial support to Pain News Network and sponsors PNN’s Patient Resources section.   

High-Frequency Spinal Cord Stimulators Provide More Pain Relief

By Pat Anson, PNN Editor

Spinal cord stimulators are often considered the treatment of last resort for patients with intractable or severe chronic pain. The surgically implanted devices emit low levels of electricity that reduce pain signals, but have high failure rates and often have to be removed because they’re ineffective, cause infections or need new batteries.

Two new studies suggest there are ways to improve the success rate of spinal cord stimulators (SCS) through improved patient selection and the use of high-frequency devices.

Low-frequency SCS (50 Hz) was first approved by the Food and Drug Administration for intractable back and leg pain in 1989. Six years later, the FDA approved high-frequency devices (10,000 Hz), that deliver pulses of electrical stimulation that are shorter in duration, lower in amplitude and do not cause paresthesia, an irritating sensation of tingling or prickling.

In a retrospective study of 237 patients who received stimulators between 2004 and 2020, researchers at the University of California San Diego School of Medicine reported that high-frequency devices were more effective at reducing pain and opioid use than low-frequency ones.

The study findings, published in the journal Bioelectronic Medicine, also show that male patients benefit more than women from high-frequency neuromodulation.

"Our work was sparked by a growing literature that demonstrate sex specific immune pathways differentially contribute to chronic pain processes," said senior author Imanuel Lerman, MD, an associate professor of anesthesiology at UC San Diego Health. "The observed parameter-specific (high versus low frequency) sex-based differences in spinal cord stimulation efficacy and opiate use are definitely intriguing.”

It’s not clear why men benefit more than women, but researchers believe it may be due to the male hormone testosterone having a modulating effect on pain signals. The sex differences may also be due to males and females processing chronic pain differently.

"Clearly more work needs to be done to carefully characterize sex specific pain regulatory pathways that may prove responsive to specific types of neuromodulation and or pharmaceutical therapies," said Lerman.

Improved Patient Selection  

Although most patients are required to undergo psychological testing and a trial treatment before getting a SCS, failure rates for the devices remain high at around 25 to 30 percent. With about 50,000 stimulators implanted in the U.S. every year, that means thousands of patients are getting poor results.

To improve patient outcomes, researchers at Florida Atlantic University developed machine-learning algorithms to help predict which patients may benefit from SCS. Working with a cohort of 151 SCS patients, they evaluated 31 features or characteristics in each patient.  

Researchers found two distinct clusters of patients which differ significantly in age, duration of chronic pain, preoperative pain levels and pain catastrophizing scores. They used computers to fine-tune the results, identifying the 10 most influential features that contribute the most to a successful SCS implant.

Results of the study, published in the journal Neurosurgery, demonstrate for the first time the ability of machine-learning algorithms to predict long-term patient response to SCS placement. The next step is to validate the data in future patients to ensure that the algorithm is useful in real-world situations, not just computer models.

"Our study resulted in the development of a model to predict which patients would benefit from spinal cord stimulation," said lead author Julie Pilitsis, MD, dean and vice president of medical affairs at Florida Atlantic University's Schmidt College of Medicine.  "After we validate this work, our hope is that this machine-learning model can inform a clinical decision support tool to help physicians better choose which patients may be most appropriate."

SCS is no longer limited to patients with intractable back and neck pain. Last year the FDA expanded the use of SCS to include lower limb pain from diabetic neuropathy.  Stimulators are also being used on patients with Complex Regional Pain Syndrome (CRPS).

A decision to get a SCS shouldn’t be taken lightly. A 2018 study by a team of investigative journalists found that stimulators have some of the worst safety records of medical devices tracked by the FDA. A 2020 FDA review of adverse events involving SCS 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.