Moving Into Regenerative Orthopedics 4.0: A Q & A with Dr. Timothy Mazzola

How is regenerative orthopedics redefining patient care in Boulder and beyond?

That’s a great question. From my perspective, regenerative orthopedics is a game changing approach to orthopedic care. And the way that I think about orthopedics in the history of medicine is there have really been four major stages.

Orthopedics 1.0 was traditional open surgery—large incisions, getting in there, doing the work, closing up. 

Orthopedics 2.0 was the advent of arthroscopic surgery, using scopes and portals to do a lot of work without large incisions. . MRI became the decision-maker: if it showed a surgical  problem, you were considered a surgical candidate; if it didn’t, you weren’t. It was a fairly binary system.

Orthopedics 3.0 introduced non-surgical regenerative orthopedics using fluoroscopy and ultrasound to guide injections into those areas of injury shown on MRI. The treatment tools changed, but the thinking stayed the same—it was still surgery-minded. MRI told us where to treat and the physical exam was far less important..

Now we’re entering what I call Regenerative Orthopedics 4.0. This is the newest evolution, and it’s what we’re teaching through the Collaborative Care Collective and at Breakthrough Regenerative Orthopedics. We’re moving away from solely MRI-based treatment targets and returning to a more complete physical exam with a very hands-on approach to making a diagnosis. It’s a deeper, more personalized process—identifying injuries based on physical exam and imaging, and uncovering the root cause of dysfunction.  Much of the time the MRI findings demonstrate a secondary or tertiary problem.  Sometimes the MRI findings are a red herring, and do not correlate with a precise physical exam.

This means exploring why a patient developed plantar fasciitis or a rotator cuff tear in the first place. Was it a weak core? Prior trauma? This approach requires more time and more listening— thus we give 90 minutes or more for a new patien evaluationt. This approach allows us to build a treatment plan around the root cause AND downstream effects, not just what the MRI shows- which is usually just the downstream effects.  Instead of just treating an ACL tear or knee arthritis, it includes asking the question, “Why did this patient develop arthritis or an ACL tear?”   It's redefining care, especially here in Boulder where we’ve created a model that prioritizes that level of detail.

Is regenerative orthopedics 4.0 more proactive than reactive? Are you seeing patients earlier—before the MRI or surgery stage?

Yes, for sure. We’re starting to prevent injuries instead of waiting for them to happen. One key reason is that we’re looking at the whole system, not just one joint. Everyone talks about having a strong core in training programs, right? But many people have lost access to their core musculature—often because of old injuries they barely remember.

That’s a big part of our 90-minute evaluations. We dig into history—bike crashes, falls, car accidents, old sports injuries. These events can injure and destabilize the core. When that happens, everything downstream—your knees, hips, shoulders—becomes vulnerable. If you’ve lost access to your glutes because of a core issue, your knee is far more likely to get injured.  Thus, now we are focused on regenerative repair of the core muscles, fascia and tendons.  It’s a whole new area of regenerative orthopedics that has opened up as a result.  We and a few of our colleagues around the country are leading the charge in this arena. 

For example, almost every patient I’ve seen with an ACL tear also had glute weakness, sacroiliac ligament injury, and lumbar spine instability. So when someone tears their ACL, it’s not just about fixing the knee—we need to understand and correct the upstream injuries that led to the tear. Otherwise, they’re just set up for another injury down the line.

Also, day one of an ACL tear is the beginning of arthritis in that knee joint. The cartilage starts degrading immediately. Regenerative treatments like PRP can slow that process. So, we’re not only treating the current issue—we’re slowing down the need for a possible future knee replacement.

What kinds of injuries or chronic pain conditions respond best to regenerative treatments?

That’s a great follow-up question. But first, I think we should define what regenerative orthopedics actually is. It’s the use of your body’s own healing mechanisms—your platelets, your stem cells—to stimulate recovery and regeneration.

Stem cells, which are actually called pericytes, live alongside your blood vessels. They monitor the surrounding environment. When there’s injury and bleeding, your platelets activate and send out signals. Those pericytes detach from the blood vessel, travel to the site of the  injury, and call in the rest of the healing team—white blood cells, macrophages, repair cells.

But sometimes, injuries don’t heal completely. Maybe you fell off a bike or out of a tree ten years ago. Your body did a partial repair, but weakness and incomplete healing lingered. That creates instability, dysfunctional movement, and eventually, new injuries. Your body adapts—but not always in a good way.

That’s where regenerative orthopedics comes in. We concentrate your own healing cells and precisely inject them right to the area that didn’t finish healing. This restarts the repair process.

There’s a spectrum of regenerative options. Focused shockwave therapy and laser ares the least invasive—they don’t  even use a needle. Then prolotherapy, which uses sugar water to stimulate healing. PRP is stronger yet, and then stem cells—either from bone marrow or fat—are the most potent.

Soft tissue injuries like tendons, muscles, ligaments respond especially well. Arthritic joints don’t regenerate much if any new cartilage, but we can slow down the degeneration significantly. We’re also starting to treat muscle and fascia injuries and even partially damaged nerves. The earlier we catch the problem, the better the results.

We use a range of regenerative tools, ranked by intensity:

• Shockwave therapy – mild stimulation, no needles
• Prolotherapy – sugar-based injection to spark healing
• PRP (platelet-rich plasma) – concentrated platelets from your blood
• Stem cell therapy – using bone marrow aspirate concentrate (BMAC) or microfragmented adipose tissue (MFAT), are the most potent
  

Conditions that respond well include:

• Tendon tears and tendinitis
• Muscle and ligament strains
• Osteoarthritis, especially knee and hip arthritis
• Fascial injuries (connective tissue issues)
• Certain nerve conditions from compression or trauma
  

For someone just starting their research into regenerative treatments, where should they begin?

That’s a critical question. It’s not always easy. There’s a lot of noise out there—marketing, unverified claims, and procedures that don’t follow FDA guidelines.

I recommend looking into established organizations that train physicians in regenerative orthopedics with high integrity that adhere to the FDA guidelines, which prioritize patient safety. 

Some organizations I trust include:

• AAOM (American Academy of Orthopedic Medicine)
• IOF (Interventional Orthobiologics Foundation)
• TOBI (The Orthobiologic Institute)

These groups provide legitimate training and often list vetted providers.

Also, be cautious. Some clinics offer treatments that the FDA has ruled are not approved—like lab-grown stem cells expanded outside the body. 

 

You should also be cautious about providers pushing unapproved stem cell products—like exosomes, amniotic and umbilical tissues and stem cells.

Here’s what I advise patients to look for:

• A provider who spends real time with you—not a 10-minute consult
• A thorough, hands-on physical exam—not just an MRI review
• Someone who isn’t trying to upsell you or rush you into care
  

Unfortunately, this is a cash-pay model, and that can incentivize overselling by providers that are not orthopedic specialists. That’s one reason we formed the Collaborative Care Collective. Our goal is to build local networks across the country of high-integrity providers—PTs, physicians, bodyworkers—who understand regenerative care and are focused on true healing, not just transactions.

Where do you see the future of regenerative orthopedics going in the next 5 to 10 years—especially here in Colorado?

I think the next wave will bring more FDA-approved regenerative products. Right now, there are groups developing cell-based treatments—lab-grown stem cells, for example—that are going through the proper clinical trials to gain FDA approval. Some early results are encouraging.

We’ll also continue to build better evidence for existing treatments. At our most recent Collaborative Care Collective conference, I presented a review of the data of studiess on PRP for knee arthritis, rotator cuff tears, plantar fasciitis, and tennis elbow. The results are consistent and strong—tendon injuries heal, and arthritis improves and slows down with optimal PRP treatments.

In one 2022 study, they looked at patients who had three PRP injections for knee arthritis and compared them to a control group that got saline. Five years later, MRIs showed that the untreated knees had lost twice as much cartilage as the knees treated with PRP. That’s huge—50% less cartilage loss in the PRP-treated knees.

So we’re not just masking pain—we’re biologically slowing degeneration in the case of arthritis. And with longer-term data, we’ll be able to tailor treatments even better. My current experience is that PRP gives relief for one to three years, and stem cells can extend that to three to five, sometimes up to 10 years.

The goal is to intervene early, keep people moving, and avoid surgery altogether when possible. There are certainly situations that will require orthopedic surgery. Here in Boulder, our patients are motivated, active, and curious about alternatives to surgery. That’s why regenerative orthopedics is growing so quickly—it gives them a way to stay active, heal quickly and naturally, and get ahead of the curve.

In general when treating joint arthritis:

• PRP provides relief for 1–3 years
• Stem cell treatments such as BMAC and MFAT can last 3–5, sometimes up to 10 years
• Early intervention slows or even halts degeneration

For soft tissue injuries, such as partial tendon, ligament and muscle/fascia tears, the healing can be permanent if treated appropriately.

What’s the next step for someone who wants to explore this approach?

If you're dealing with chronic pain, a past injury, or simply want to avoid surgery and explore your body’s ability to heal itself, regenerative orthopedics may be the solution. At Breakthrough Regenerative Orthopedics in Boulder, we take the time to understand the full picture—your history, your movement, and the root causes of dysfunction as well as your personal goals. Our in-depth evaluations and personalized treatment plans are designed to get you back to doing what you love, without unnecessary interventions. Book your comprehensive assessment today and discover what’s possible through regenerative orthopedics.