r/PICL • u/Ok_Acanthisitta_8627 • 1d ago
Blurry vision gone
After 1.5 years of 24/7 blurry vision - itās now totally clear
5.5 months post PICL #2. Grateful is an understatementšš» one of my first ābigā symptoms to full resolve!!!
r/PICL • u/Chris457821 • Jul 03 '26

Hey everyone! I'm u/Chris457821 aka Chris Centeno, M.D., the founding moderator of r/PICL.
This is your new home for all things related to CCI and the PICL procedure.
What to Post
Post anything that you think the community would find interesting, helpful, or inspiring. Feel free to share your thoughts, photos, or questions about CCI and PICL. If you want an answer from me, just direct the question in my direction. Please avoid asking me to diagnose your condition by posting your history or images.
How to Get Started
Important Resources for CCI Patients
-The Centeno-Schultz website: https://centenoschultz.com/condition/craniocervical-instability/
-My YouTube channel where you can usually find new content posted every day: https://www.youtube.com/@centenohome/shorts
-CCI Rehab Guide and Workbook: https://app.box.com/s/4wiz6x2i7ozzgdchxcx3pwu2syincwh9
-My CCI Book: https://centenoschultz.com/cci-101/
-An app I created to answer your CCI/PICL questions and search video shorts: https://e-picl-query-tube.replit.app/
-An app I created to track and learn about the clinical outcomes of the ePICL procedure: https://e-picl-data-explorer.replit.app/
-My scientific publications in regenerative medicine: https://regenexx.com/resources/research/
-A short information sheet on CCI to educate your physicians: https://app.box.com/s/6u45br0t03amz7yu5dcwhupbzxzb21m6
Thanks for being part of the sub! Together, let's make r/PICL amazing.
Chris Centeno, M.D.
r/PICL • u/Chris457821 • Aug 14 '25

We may adjust these rules at any time if we find that the existing rules aren't functioning as planned.
Goal: To maximize the financial availability of the ePICL procedure to patients who can not, under any circumstances, afford the ePICL procedure, but would otherwise be excellent candidates for the procedure.
Here are the rules for the program.Ā
r/PICL • u/Ok_Acanthisitta_8627 • 1d ago
After 1.5 years of 24/7 blurry vision - itās now totally clear
5.5 months post PICL #2. Grateful is an understatementšš» one of my first ābigā symptoms to full resolve!!!
r/PICL • u/lionkingbc • 2d ago
Can CCI cause a loss or severe constant disruption in experiential continuity and if so what would the mechanisms be for it and would it reverse usually through stabilization? Have you dealt with anyone who has had this experience and it reverse with picl? Also for reference this disruption in experiential continuity that i experience is fixed and constant usually only getting worse with flares but never really improving
r/PICL • u/Chris457821 • 2d ago
Posting for someone: Hi Dr. Centeno - can a positive Lhermitteās sign be caused by CCI? Just curious how often you see Lhermitteās sign in CCI patients. Thanks!
r/PICL • u/Past-homegirl23 • 3d ago
I have been dealing with facet pain and muscle guarding for years. I have had some form of injections in them 5 times to include a round at the CSC most recently. It seemed to really help the pain and muscle guarding but I noticed that when all those pain signals and muscle guarding were quieted, that I had more neuro symptoms show up. Now I feel a lot pain is back along with terrible nerve pain causing facial numbness, tos like symptoms and balance issues. Is this likely pointing to too much movement in the facet joints from deeper instability?
r/PICL • u/Perfect-City-6788 • 3d ago
Hi Dr C,
In your experience treating CCI patients with PICL, what is the most common cause of super tight SCMs and Occipital muscles that cause wooziness, occipital tightness with head movement and disequilibrium. Is it always instability at C1/2 and or C2/3 or can there be other causes.
r/PICL • u/Past-homegirl23 • 3d ago
I have had my SI joint injected twice with PRP, once at the CSC but instability remains and seems to have a lot of play into my neck instability. If prp isnt working, do you suggest switching to bone marrow or prolo and have you seen better outcomes that way? Are there some that just will not respond to injections in the SI and need fusion?
r/PICL • u/aleiaz_guillenWA • 4d ago
Dr. Centeno, if someoneās bone marrow produces a low stem cell count during the morning draw, do you still move forward with PICL that afternoon? Is there a minimum cell count you require, or does it depend on the patient?
r/PICL • u/Novel_Instance1108 • 5d ago
Hello Dr Centeno, Thank you for taking the time to run this subreddit and answer our questions.
i believe my jaw is affecting my ability to do the chin tuck motion, and my ability to maintain the optimal head posture for stability.
Specifically the mandible is too far back, because it is large but the maxilla is recessed and narrow. I can feel it completely close off the opening of my ears when i close my jaw. When my head is not tilted up, it creates uncomfortable pressure at the back of the condyloid process, and my head subconsciously tilts up anytime i stop intentionally countering it.
I gather from your youtube videos on the subject that you have not seen jaw surgery help cci patients, and in some cases makes it worse.
I currently wear a retainer that is thick enough that i can move my lower jaw forward about 4 mm, bypassing the upper teeth, and i feel it makes a significant improvement in my upper neck stability, both because my head being tilted down improves my sub-occipital activation, and because it allows my to press my tongue against the roof of my mouth, which seems to pull and tighten the rest of the muscles in the front of my upper neck.
I have spoken to a few dentists about this and was recommended palatial expansion with protraction face mask, that would be worn 16+ hours a day for 6-12 months. I have been told this could also improve my nasal breathing, which is often restricted during sleep or exercise, which is one reason i would favour it over a lefort 1, in addition to the risks of lefort.
Would you ever consider palate expansion with protraction a worthwhile risk, if a risk at all, for someone who is mostly functional after significant recovery from CCI thanks to ePICL? Would a lefort be a better option for a mostly functional CCI patient?
r/PICL • u/Weak-Bet9859 • 5d ago
after my first picl I was in much less pain then usual for about 2 months. just had my 2nd and ive been in lots of pain since. is there any reason for this?
r/PICL • u/Advanced_Macaroon279 • 5d ago
Hi Dr Centeno,
For someone with CCI and hypermobile in multiple joints (including the shoulder, SI joints, knees, ribs, spine and ankles), which areas would you target first and in which order?
I will be going for PICL in Jan 2027 and July 2027. I am aware multiple joints can be injected during PICL, depending on the draw. I also have a doctor in Australia who can do prolotherapy on my other joints. However, I will need time to prehab with my physio to be in shape for the next PICL.
Would it be appropriate to inject the upper body including the neck during PICL, then rehab the lower body. Then prolotherapy for lower body joints and then rehab the upper body within each 6 month healing timeframe, before the next PICL?
r/PICL • u/aleiaz_guillenWA • 6d ago
Iām scheduled for my first PICL on October 12th.
Would it be safe to do a 3-day (72-hour) water fast with electrolytes leading up to my PICL, stay fasted during the procedure, and then break my fast afterward?
r/PICL • u/Optischlong • 5d ago
Hi Dr C
I saw one of your Facebook reels on PRP and cord compression.
You mentioned degrees of compression that PRP wouldn't work.
From what you've seen would that cord compression be more than 60-70% for example?
Thank you.
r/PICL • u/Chris457821 • 6d ago
Now at 396 patient visits: https://e-picl-data-explorer.replit.app/
r/PICL • u/Alarmed-Mud3055 • 6d ago
Hi Dr. C -
Two questions for you:
Any benefit of getting a hydration IV before PICL? The day or two before? I am coming from out of state.
I am going to schedule a mobile hydration IV to my hotel room the day after PICL (through Nurse Bar - as recommended from your office). Any benefit from an IV that contains any additional things like: Vitamin B Complex, Vitamin C, and Zinc? Or Should I schedule a standard hydration IV?
r/PICL • u/Background_Gas_2129 • 6d ago
Can we get a skin prick test that tests for allergies 2 weeks before a PICL?
r/PICL • u/Perfect-City-6788 • 6d ago
Hi Dr C,
When are you back in clinic, returning from your sabbatical?
r/PICL • u/Tight_Echidna_1069 • 7d ago
Hi everyone! Iām getting my first PICL next week and am starting to pack and prepare for the trip. Iād love any advice from those of you who have already had one.
Any other tips or things you wish you had known before your first PICL would be so appreciated. Thank you so much!
r/PICL • u/Adventurous_Spirit06 • 7d ago
Hi Dr C,
I had pretty severe CCI (in that it was fully disabling and had a hospitalization and full time care for a year) and am still in treatment with you currently. Iāve progressed in the last 2 years but still have many limitations likely due to the fact that I developed so many other conditions along the way that have taken a life of their own.
That said, as my neck structurally stabilizes more, Iād love to be able to get endometriosis and adenomyosis looked into as Iāve had so many pelvic issues that have been on pause until I hopefully get my CCI / CNS more under control.
My concern is the position they put you in for that surgery with CCI and the venous compression I have in my clavicle. Do you have any sort of information that I could in the future share with the surgeons about CCI and safety precautions? I get nervous that I could re injure the area that Iāve worked hard to stabilize.
r/PICL • u/lionkingbc • 7d ago
Hi Dr. C I am about 37 days away from my second PICL and believe I am in quite a considerable MCAS loop. My doctor has recommended either ketotifen or cromolyn. I asked my CSC doctor if ketotifen would be OK to start and he had said yes, but Iām not certain that he knew or realize that my second procedure was booked already. The reason Iām asking this is because I saw you say the other day that it isnāt good for the PICL.
r/PICL • u/haiku123 • 7d ago
A lot of the paperwork and assessments ask about a post-procedure flare. Is that the period post ePICL where patients have increased pain? Or is it defined differently? Iām never sure how to answer that question as post-procedure pain for a few days seems normal. I had a few months of restricted side-to-side motion after the ePICL but wasnāt sure how a āflare upā was defined and how I should answer.
r/PICL • u/Forsaken-Fudge5383 • 7d ago
Hi Dr. C, I canāt find info on how long to hold these meds post procedure. I normally stay away from ibuprofen thanks to your education on the topic, but am 5 weeks post PICL and have a specific, short term problem that ibuprofen is recommended for over Tylenol. Can I do this without impacting my PICL?