2017 Orthopedic Bone Marrow Stem Cell Research Infographic

By Chris Centeno, MD /

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Every year for the last four to five or so, I have compiled a list of the published bone marrow stem cell research. Since I’ve updated this every spring, here’s my 2017 edition. Overall, 2016–2017 has been a mixed year for bone marrow stem cell publications. The good news is that we’ve seen higher quality, but still small studies being published. The bad news is that total publishing volume is down. I suspect this is because we see more diversity in stem cell types being used. This development is likely a good thing.

The Summary of What Got Published

The good news is that we see more high-quality research being published for knee osteoarthritis (OA). Meaning, there are more randomized controlled trials, or control groups. On the other hand, the total number of patients in these studies are still small at 25–50 patients.

The total number of patients {cumulative patient n) is now up to more than 8,500 people. So the next time someone tries to tell you that we have little research on bone marrow stem cell use in orthopedics, just quote that number. While some would claim that clinical research in orthopedic stem cell use is in its infancy, this body of evidence is reaching late adolescence.

What’s fascinating is that some key trends are emerging that aren’t good for the U.S. Outside of our Regenexx studies and a few small ones out of US universities, Spain has been dominating culture-expanded bone marrow stem cell research in orthopedics. This trend is due in large part to regulatory differences between Spain and the U.S. In essence, our US regulatory structure has hamstrung American orthopedic stem cell publishing. Even more bizarre is that despite outspending countries like Spain 100–1,000 to 1 in basic-science stem cell research, we’re somehow falling behind in the clinical-research arena.

The Need to Start Including Other Cell Types in My Summary

What I found exciting this last two years is seeing the growth in the use of other stem cell types in orthopedics. In particular, the use of stem cells derived from fat has been a part of more studies. While last year there wasn’t enough to include to make a go of it, this past two years, there is enough to warrant inclusion. As a result, tomorrow I’ll post an updated infographic that has all cell types listed.

The Percentage of Total Patients That Are Regenexx

Every year I perform a calculation of the total number of patients that we have published on versus the total published. This is a rough metric of our publishing activity versus the rest of the world. I’m proud to report that 49.5% of the total n (patient number) as of April 2017 are Regenexx patients.

How to Use This Infographic

The image above links to a live PDF. Each circle represents a different study and has a live link to that publication. Inside the circle, it lists the first author, the body part treated, the number of patients treated in the study, and the type of cells used. There is also a syringe icon if the study was injection based, a scalpel if the study was surgical, and both if both implant routes were used.

While I try hard to include all studies, I may have missed a few. Same for making sure all of the links work. So since this is a multiyear project, please ping me via e-mail if you see any issue. The e-mail that goes to my desk is [email protected]

The upshot? We see still see strong research publication in bone marrow stem cell use in orthopedics. Due to enough data being published on other stem cell types to warrant inclusion in my summary, I’ll pull the trigger on a bigger review that I’ll publish in tomorrow’s blog.

4/19/17—Added 2 papers by Mardones. 

10/1/17-Added our shoulder paper that I had initially neglected to include. 

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8 thoughts on “2017 Orthopedic Bone Marrow Stem Cell Research Infographic

  1. Dane

    Hi Dr. Centeno,
    You missed one, a cultured BM MSC paper for hip OA from Chile, published this February:
    https://www.researchgate.net/publication/315467659_Mesenchymal_stem_cell_therapy_in_the_treatment_of_hip_osteoarthritis

    1. Regenexx Team Post author

      Dane,
      Thanks for the heads up! I’ve added it and another I found from the same author.

  2. Tom

    Is it possible to treat a lower ankle with PRP? If yes, do you need a x-ray control for lower ankle injections?
    Thank you in advance

    1. Regenexx Team Post author

      Tom,
      Yes. What type of guidance depends on what’s being injected. Ulatrasound is better for tendons and ligaments, Fluoroscopy needed for the joint as ultrasound is not capable of seeing inside the joint at that depth or inside bone, so there would simply be no way to accurately place the cells in the ankle joint . Please see: https://regenexx.com/blog/new-ankle-surgery-alternative/ and https://regenexx.com/the-regenexx-procedures/ankle-surgery-alternative/ (scroll down to watch actual ankle procedure)

      1. Tom

        Thank you for your help. I meant to treat a small cartilage defect of the lower ankle.

        Is there no alternative to the use of x-ray to guide the needle in the right position for the injection?

        Because if you need for example 4 injections, this would mean a minimum of 8 x-rays, which seems to be another risk because of the x-ray radiation exposure?

        1. Regenexx Team Post author

          Tom,
          Fluoroscopy is different than an Xray you would get at an ER, or Doctor’s office to rule out an broken bone. The amount of radiation exposure you would get in a procedure is more similar to the type of radiation exposure you would get in a cross country flight on a major airline. Each case is unique, if you’d like to see what type of guidance would be needed in your particular case, please submit the Candidate form.

  3. AllisonFlorance

    Will you start using the fat and bone marrow stem cells together for treatments now?

    1. Regenexx Team Post author

      Allison,
      No, SVF isolation (i.e. isolating stem cells from fat) is illegal in the US. Our 2014 study showed that adding in a legal fat graft to a bone marrow treatment didn’t help outcomes.

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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