Treating the Whole Spine with Orthobiologics

by Chris Centeno, MD /

If you visit a doctor who injects the spine, it’s highly likely that he or she will focus on finding one spot that’s causing most of your pain. However, is that the best approach to trying to help your back pain? This morning I’d like to show you some data from our registry that argues that this approach, even when orthobiologics, like PRP, replace harmful steroids, may not be the best we have to offer patients. Instead, a more wholistic spine-injection approach may give you better results. Let me explain.

What Is the Pain Generator Approach?

A couple of weeks ago, I blogged on the functional spinal unit (FSU) and getting rid of the pain generator. Today I want to expand on why we may need to move away from the pain generator approach and start treating the whole spine. Let’s review the pain generator approach.

In defining the concept of the pain generator, first, the pain generator is the primary, or sole, cause of the patient’s pain. You may be experiencing back pain, but where is the pain generating from? A spinal nerve? An injured disc? The spinal facet joint? So the pain generator is the pathoanatomic site, or pathologic structure, from where the back pain is originating. So the basic approach is to identify the source, the pain generator, and treat it.

When this approach first became popular, it was revolutionary in that it focused physicians on moving away from the silly notion that all “back pain” was the same. Hence, this was a huge advance. Why? Because we now understood that some patients had pain primarily in their SI joint while others had a different problem and had pain coming from their facet joints.

Hence, it makes common sense that interventional pain management physicians, who are doctors who do injections throughout the spine, are taught to find the one thing that’s causing most of the pain and then inject that structure. That one thing is the pain generator. However, is this the best way to optimize outcomes in an age of orthobiologics?

What Are Orthobiologics?

If you read this blog regularly, you likely understand that the world of spinal-pain treatment has shifted radically in the last few years. While we at Regenexx began to use stem cells and PRP to treat the spine way back in 2005, when it was considered quackery, over the last few years, many traditional physicians have seen the wisdom of ditching harmful steroid injections and adopting orthobiologics. These are substances like PRP and stem cells and many other things that can help enhance healing. Other things on this list include cytokine-enriched serums, ECM products like amnion, and new biologic drugs that are working their way through the FDA approval process now.

Injecting Orthobiologics in the Spine Using the Pain Generator Approach

The problem that I see today is that interventional pain management physicians who are adding PRP and stem cells to their practices are really just adding these orthobiologics using the same pain generator approach, just injecting the one thing in the spine. However, is injecting this one structure the best way to apply orthobiologics to the spine, or are they missing a key concept by not treating the whole spine?

We May Be Missing Something if We’re Injecting Only the Pain Generator

The pain generator approach, like many things in medicine, is really just reductionist thinking. In other words, it’s trying to solve a problem by identifying and focusing on its parts rather than treating the whole organ. The spine isn’t just a collection of parts and pieces; it’s a whole functional spinal unit (FSU), meaning all of its parts work together as one unit to withstand loads and protect the body. So treating one part, just the pain generator, ignores any other part that might be impacting the functioning of the whole unit.

Let’s see what our registry data says…

Show Me the Data: Treating the Pain Generator vs. Treating the Whole Spine

Our former Centeno-Schultz Clinic fellow Chris Williams, MD, who is a brilliant interventional orthopedic physician and now opening his own practice in Atlanta, pulled together this data-driven registry project. The patient registry data he pulled included the following:

  1. High-dose LP-PRP injected into facets under fluoro guidance with contrast confirmation
  2. Platelet lysate mixed with 12.5% dextrose and ropiviciane injected into ligaments
  3. Platelet lysate mixed with nanogram dexamethasone and ropivacaine was injected via fluoro-guided transforaminal epidurals with contrast confirmation.

To see this data, please watch the video above.

Let’s first discuss the data on fluoroscopy-guided lumbar facet-only injections (number 1 above). This is the “pain generator” approach where we injected just the facet joint that was causing the most pain. Meaning, these are the patients who have back pain due to facet joint arthritis. What was interesting here was that for the pain and function scores, there was no statistically significant improvement at many of the time points (at 1, 3, 6, 12, 18, and 24 months) after the facet injection with the PRP. Again, watch the video for graphs illustrating all of this data.

Now let’s see what happens when we examine data on both facet and ligament injections (fluoroscopy-guided lumbar facet and ligament injections). These structures comprise two components of the FSU (numbers 1 and 2 above). Looking at both pain and function, we see something completely different: all time points in both pain and function now demonstrate statistically significant improvements.

We see the same thing when we add fluoroscopy-guided treatments on the facet and ligament plus the epidural injections (numbers 1, 2, and 3 above). Statistical significance in both metrics. This is in contrast to the one structure pain generator approach, showing the opposite. In summary, treating two or three structures in the FSU has greater improvements in pain and function than only treating the pain generator.

Getting Most Physicians to Shift Away from the Pain Generator Approach Will Take a While

First, I would estimate that 95% of the doctors out there who can use guidance to inject PRP or stem cells into specific parts of the spine have no idea how to diagnose a problem with the functional spinal unit or inject its other parts, like the ligaments and stabilizing muscles (multifidus). Hence, this will be a huge educational process. In addition, please note that things are even worse at the average chiropractor’s office offering fake amniotic and umbilical cord “stem cell” therapy. Here, they just blindly inject the muscle trigger points, completely missing almost all of the FSU.

The upshot? This registry data supports that treating the whole spine (injecting the full FSU) with orthobiologics produces better results than just injecting a single structure. Is it time to get rid of the pain generator approach? More research will need to be done. However, based on what I’ve observed through the years, IMHO, it’s time to crown a new king. The king is dead, long live the king.

Category: Back/lumbar

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5 thoughts on “Treating the Whole Spine with Orthobiologics

  1. Sam

    The danger of “pain generator” approach, especially in its traditional (non-regenerative) mode, is that a FSU that is actually hurting a patient through two or more components is likely to be misjudged as minimally symptomatic or even completely asymptomatic by applying the reductionist (mis)guideline. Hence, the multidisciplinary approach when placed within the dysfunctional reductionist mechanism would result in a false-negative diagnosis. Ironically, the more components of FSU are involved the more probability that a false-negative diagnosis occur, meaning there are greater chances that a more symptomatic patient is misjudged as asymptomatic through a reductionist approach. The end result is that patients, by going through the lengthy reductionist process, not only incur more cost but also could get worse due to not getting effective treatments in a timely manner. It is also possible that such patients are stigmatized through this dysfunctional process. There is “no doubt” that the “reductionist pain generator” approach must, as a bare minimum, be replaced with FSU approach.

  2. Josie Lopez Aziz

    I have Lumbar Radiculopathy (ICD-724,4)(ICD 10-M54. 16). LUMBOSACRAL SPONDYLOSIS (ICD-721.3) ) (ICD10-M47.817 )

    1. Regenexx Team

      Josie,
      We’d need a lot more information. If you’d like to see if you would be a Candidate for a Regenexx spinal procedure, please submit the “Are You a Candidate” form here: https://regenexx.com/the-regenexx-procedures/back-surgery-alternative/

  3. Warren

    Chris, your synopsis of the cited study concludes that better outcomes occur if a two or three pronged approach is used. One of those prongs included dexamethasone, a steroid. Throughout your blogs you have emphasized that steroid injections must be avoided. How do you reconcile using a steroid when you have repeatedly stated that steroid injections are more harmful than beneficial?

    1. Regenexx Team

      Hi Warren,
      Of the three commonly used, Dexamethasone is the least harmful. It is used with Platelet Lysate, not stem cells, and a nanogram is used, which is 1/1,000,000 of the dose commonly used by many practioners, and is a dose cells are used to being exposed to in the body. Please see:https://regenexx.com/blog/new-research-steroids-hammer-stem-cells/

Chris Centeno, MD

Regenexx Founder

Chris Centeno, MD is a specialist in regenerative medicine and the new field of Interventional Orthopedics. Centeno pioneered orthopedic stem cell procedures in 2005 and is responsible for a large amount of the published research on stem cell use for orthopedic applications.
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