It’s Ask Dr. C Time Again!

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It’s time to hone your questions about orthobiologics or your joint, tendon, ligament, or spine problems. This is when you leave your burning questions in the comments below and I answer them in a long format, highlighted on the blog. Can’t wait to see what great questions readers come up with!

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33 thoughts on “It’s Ask Dr. C Time Again!

  1. framistat

    My questions are more about having to travel and trying to minimize travel time and cost, and tolerating treatment. In general, would it be possible/advisable to evaluate and treat, say, neck and both shoulders, or both thumbs and wrists in an afternoon? How do you help patients tolerate that many injections, eg would Xanax help?

    1. Chris Centeno, MD Post author

      We could treat all of this at once. In teh Colorado clinic we offer full anesthesia services, so you can be knocked out with an IV.

  2. C. H.

    I am not sure if you addressed any questions on tears in the calf? I recently tore a calf muscle while repetively going up and down a small ladder while painting. I have a back condition which has affected my knees and I had tried to not do too much stretching the work out several days. Any suggestions on treatment for the calf and the overall low back /knee issues?

    1. Chris Centeno, MD Post author

      Answered in 10/25/20 blog.

  3. Leonard schaitman

    How is it that PRP has supposedly helped many people, but it’s not covered by insurnce?

    1. Chris Centeno, MD Post author

      Answered in 10/25/20 blog.

  4. Lindsay Brady

    I have osteo arthritis in my right hip.I was booked into your Cayman clinic in April and then June for Stem Cell treatment.Both cancelled because of Covid19.A few of my friends have had Hylaluronic Acid injections in their joints for arthritis pain relief.
    They have claimed it works well.I’m wondering if I have this injection as a stop gap until I can get to your clinic will it affect the stem cell treatment which could be a year away with the US epidemic.

    1. Chris Centeno, MD Post author

      Yes Lindsay, either HA or high-dose PRP (or both) could be good stop-gap measures.

  5. English Sieber

    I had a Rhizotomy 10 weeks ago and ever since I’ve had it done I can barely walk because my legs hurt so bad or stand for any longer than 10 minutes without having excruciating pain in my lower back forcing me to sit down. What could have gone wrong with this procedure to cause me so many problems? I am hurting 20x worse than I was before having the procedure. I have never had so much pain! My pain meds don’t even touch this pain!

    1. Chris Centeno, MD Post author

      There may have been an injury to the spinal nerves. I would need to know more to make that diagnosis.

  6. Mark haase

    Shoulder tears : surgery versus physical therapy?

    1. Chris Centeno, MD Post author

      I would need more information to answer this question.

  7. ken Kowalchuk

    Have there been any improvements in treating hip osteo with same day stem cells to avoid having to travel to the Caymans? Has there been any improvements in the efficacy of hip treatments?

    1. Chris Centeno, MD Post author

      No, more advanced hip OA is still a Cayman only treatment.

  8. Kent Lester

    What’s the highest number of joints you’d want to treat in the Caymans at one time?

    1. Chris Centeno, MD Post author

      That would be limited by the patient’s clinical history, disability, available dose, etc… However, from time to time, we have treated patients with 7-8 joints or areas down there.

  9. Bruce Jordan

    Will you be opening more Regenexx clinics throughout the country? I’m in Maine and have to drive to Vermont to get my treatment. About a 4 hour drive, one way. I would love to see one open closer to me. Although, Vermont is a beautiful place is visit.

    1. Chris Centeno, MD Post author

      We open clinics when we find qualified physicians, which are few are far between. However, yes, we’re constantly adding doctors and clinics at a rate of usually 10-12 a year.

  10. Barbara

    I was in your Long Tree clinic in 2018 & 2019 and had multiple injections for my knees and spine. I live in SE Connecticut and really cannot travel to CO again. I am going to visit a local orthopedic doc. Many of my skiing friends have had good results with hyaluronic acid injections for knees. Is that something I should consider?

    1. Chris Centeno, MD Post author

      HA can be helpful. Make sure they use ultrasound guidance to inject and don’t do this blind. We also have several Regenexx clinics in this area. Just to to “Find a Clinic” above.

  11. Vicki M.

    Hi Dr. “C”…Chris…
    You answered my question last week regarding FRAUD against Vibrant Health Care in Scottsdale, Arizona. How last January 24, 2020 they told me I was getting stem cells & I didn’t. They “supposedly” injected WHO KNOW WHAT in me.
    I had to finance with Green Sky $7,500. I’ve gone back and forth w/Green Sky. I got notice this week GS is crediting my account back & refunding me the payments I made. Fine and dandy, but NOW “what?” I’m back at Step 1, WHO & HOW do I get stem cells? WHEN should I have my payments refunded by?
    You, Dr. “C” told me to contact the attorney general’s office, Vibrant (and Green Sky?) committed fraud you said.
    Wouldn’t I want to retain an attorney and go after them for Fraud? I’ve recorded EVERY conversation with Vibrant. Who knows how many other people are being taken advantage of? I want Vibrant’s method EXPOSED. What they’re doing is WRONG.
    I heard from a very reputable source (and read it, too)…The FDA doesn’t want ANYTHING mixed with stem cells when injecting. Vibrant told me ONE THIRD IS “EXOSOMES” and two thirds are stem cells. Isn’t THAT Number 2 error?!
    I’m barely able to walk, NO flexibility in my knees along with excruciating pain. I was told I was getting 1mm in each knee, and also my left shoulder for a rotate cuff tear. (Of the 1mm, one third was supposedly exosomes. Legal or illegal?)
    WHO do I contact now for product? You guys are Colorado & I’m in Arizona. OR do you have offices in Phoenix? WHO will finance me? I don’t know IF Green Sky will after that episode. What can I do?! I’m silently going crazy, pain everywhere, stuck in the house, can you help me with definite direction on WHAT next, and WHO?

  12. Renata

    I’m very great full for Regenexx and when an opportunity arises to speak with someone about alternatives to surgery, I tell them my story which includes referring them to Regenexx. For instance, I have one of my friends fly to Colorado for her knee at your clinic. So with that, do you offer any Regenexx shirts, etc? ;-) I’ll be so happy to wear it as I’m a walking testimony. Thank you!

    1. Chris Centeno, MD Post author

      Renata, we do have Regenexx shirts. Just send my assistant an email at [email protected]

  13. Jan Maher

    I’m curious to know your assessment of the claims made by Lifewave, which claims to stimulate stem cells with their “x39” patch that is worn on the body like a small band aid. Sold, I might add, through a multi-level-marketing structure.

    1. Chris Centeno, MD Post author

      That should make a good blog once I get a chance to dig deeper. However, I do not believe that Lifewave stimulates stem cells in any clinically meaningful way.

  14. Daniel Shalev

    Hello Dr Centeno,
    Is it possible to use Platelet Lysate
    made from Platelets coming from a Blood Bank ? Platelet units from a blood bank are occasionally given intravenously in Operating rooms and ICUs. Can they also be used instead of the usual PRP ?That would allow the use of larger volumes of PRP or Platelet Lysate.
    Thank you.

    1. Chris Centeno, MD Post author

      Yes, PL can be used from a donor. That’s called pooled PL and it’s usually used in cell culture. Not approved for human injection use at this point.

  15. David A Jones

    In your post debunking the “Stem Cell Machine” I was interested in a comment you made about an infra red heater that your clinic sells to increase blood flow to problem areas which also increases the flow of stem cells to assist in the healing process. I have bad lumbar back problems and have to walk with a cane. I am a 76 year old overweight male and have had 3 PRP treatments at the Rejuv Medical Regenexx clinic in Waite Park Minnesota in May, August and November 2019 with some amount of relief. I also have very bad joint pain in my right thumb which started when I was 74. I must have inherited this condition from my mother who had the same problem in her right hand when she was about that age. On my own initiative, prior to reading about your infra red heater, I had started to apply quite hot water 4 or five times a day to my right thumb and in a couple of weeks I am noticing a marked improvement. I am now going to try heat on my back. Can I use a regular 1500 watt variable household heater blowing on to my back several times a day? Or is an infra red heater necessary? I would think that heat is heat, right?
    Also, have any studies been done on stem cell density in blood of people of various ages? Are there any regimens to increase these stem cell densities? Have any published studies been done on this matter?

    1. Chris Centeno, MD Post author

      I can’t give medical advice on a blog, but heat will activate stem cells and increase blood flow.

  16. Ed Marx

    You mentioned that pain was not shown to be associated with loss of cartilage, but that a relation between pain and micro cracks in the bone was likely. Do you have more information about micro cracks and how they are caused and how they might be healed, or any more resources about them? My hips are arthritic and I’ve been avoiding surgery for 10 years and have had some decent results with PT techniques and would like to know as much as I can about joints and their structure and movement.


    In your last blog you answered a question in which you agreed on the importance of correcting the patient’s biomechanics. I have had your stem cell procedure in my knee, but definitely need to have my biomechanics corrected. Where would you send a patient for this correction?

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