What Our Patients Are Saying

I have had facet arthritic pain for the past two years at my L3/L4 and L4/L5 as a result of a sports injury and military service. Orthopedic surgery was not a viable option. Over the past two years I have done 3 rounds of physical therapy, chiropractic therapy, 3 sets of radio frequency ablation, and 2 stem cell injections. Radio frequency ablation was effective for 10-14 months but the nerves grew back and my pain returned about 8 months ago. PT didn’t really help. As a result of my pain I developed bad movement patterns and my body created stiffness in my low back in order to prevent painful movements. Prior to my injections I could NOT; run, hyper extend, or swim without pain.

Dr. Derrington spent over two hours during my initial consult, to listen to my history and he conducted an extremely comprehensive physical assessment. He then walked me through a treatment course of action. I have NEVER had a physician take this much time to conduct an evaluation. He used an online musculoskeletal program to show exactly where my injury was, and where he intended to conduct the injections. He spent at least 30 minutes of the evaluation educating me about the pros/cons of the injections and what I could expect from a recovery standpoint. He was extremely candid during the entire process. Dr. Derrington recommended a set of PRP injections at my facet joints (L3/L4, L4/L5, L5/S1) as well as a series of injections near my L4/L5 disk, and a series of injections into my lumbar stabilization muscles. What sets his clinic apart from other regenerative clinics is the fact that he did a series of injections throughout the back. He injected the PRP in the muscles, facet joints, and near the disk.

Three days after my consultation, I had the procedure. The procedure went smoothly. It took about 5 weeks for me to notice changes. I am currently 9 weeks post procedure. I am able to run upwards of 3 miles, 2 times a week. I can swim without pain, and am able to hit the stationary bike for 60 minutes at a time. I can do most calisthenic workouts. I have no background pain. I still have limitations with hyper extension and rotational movements, however, I am able to extend and rotate much farther than I could 9 weeks ago. 8 weeks after the procedure he conducted a virtual follow up.

Dr. Derrington has a fantastic clinic. He truly cares about his patients, and takes the time to understand the underlying problem. I highly recommend seeing him if you have chronic pain.

– Jeremy C.
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In 2019, I was told by an orthopedic surgeon that I needed a meniscectomy. I got a second opinion with Dr. Derrington and he fixed my Left Knee Large Meniscus tear with his state of the art PRP procedure. 2 years and counting, my Left knee is 100% functional with no symptoms. I recently went back because I don’t trust any other doctors with my orthopedic issues. After a strenuous hike, I started having soreness and stiffness in the back of my right leg, Dr. Derrington gave me a thorough exam and a diagnosis of a hamstring strain. Minimal treatment will be needed, brace and PT only. Derrington Orthopedics is where I go to for all my orthopedic needs. He has always been available to me for any questions or issues regarding general health and well-being!

– Teresa Turner
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Hope you are doing well. Just wanted to give you a quick update (reflected in the most recent survey I did for you guys).

It’s been two weeks and I’ve been completely pain free! During these two weeks, I have taken long car rides and just got back from Seattle (multiple uncomfortable plane rides) and even with those previous triggers there hasn’t been any regression at all. I’ve also done some intense work in the house and yard which resulted in significant soreness (which had me worried for a sec) but went away naturally. I am still doing the exercise and have some tightness to release but my flexibility has changed exponentially especially as it related to my leg and back.

Happy to discuss the details further if you are interested. Otherwise just rest assured that things have evolved since our last chat and it’s been positive. Hope you find some joy knowing that your work transforms lives, I can’t remember the last time I felt this normal. Thank you.

More to come,
Carl
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💯💪💪 i had 2 surgeons tell me i needed surgery in my shoulder. Dr Derrington gave me amniofix injections and within 6 months i was 💯 better! I recently did my lower back, can’t wait to see results!

– Anonymous
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Hey Doctor Derrington! It’s going great. The past 2 weeks have really felt a lot better and I’m able to go 100% plus the flare up down the leg from the golfing really has not been present at all anymore. I trained yesterday with the Oakland Roots professional team and ran a lot and it felt great, thanks so much for everything you do!

– Omar Y.
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My boss’s wife was having a lot of pain with her knees so they made an appointment right see Dr. Derrington to discuss his PRP procedure. The process sounded great, so she decided to have it done, which was a game changer for her. It really helped to eliminate her pain and she has had no complaints since the procedure. They have only great things to say about Dr. Derrington, and his office staff. In fact, they have referred several of their friends to this office!

– Carrie R.
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Dr. Derrington and his staff are top notch. I give my highest recommendation to the work they do.

– Frank F.
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I had some pretty severe issues with my knees, Dr. Derrington’s treatment and care has allowed me to get back on the hiking trails, and given me back an important part of my life….

– Rodney S.
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Dr. Derrington and his team at Derrington Orthopedics are consummate professionals who emphasize high quality care and patient satisfaction. I can personally attest to seeing the amazing results of his work firsthand. I highly recommend him and his team without reservation for those looking for alternative solutions at dealing with pain and physical dysfunction.

– ProResults PT
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Dr. Derrington and his staff are very professional. I have referred patients there in the past and we have co-treated cases together. I would not hesitate referring in the future. He is also a source of good advice for difficult cases. He has given me valuable advice to help patients get better results.

– Orange County Disc Associates
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Larry Sladek

8/21/2026

Explained all options. Very concerned about pain level. Had equipment that was necessary. Staff was excellent.

Vik S

8/07/2026

Dr. Derrington and his team were excellent. He did a thorough MRI review and examined me under ultrasound before coming up with a really solid treatment plan. The treatment itself was comprehensive and far less painful than I expected. The practice staff were great throughout, and I felt well taken care of from start to finish. Highly recommend.

Carla Dekle

8/07/2026

If I could give this Doctor and his staff 10 stars I would! I was super apprehensive about having this procedure done, but between Dr. Derrington and Melanie, I am so glad I did! From my first visit with him, he showed me everything, explained everything in detail. Melanie going a step further sent me videos of the procedures, and that really put my mind at ease, and I was actually excited about get this done!Then came the day of my visit at his office in Carlsbad, his staff, T and Abraham were amazing. And I love that Dr. Derrington asked me what kind of music I wanted to hear during the procedures, that really calmed me and made it a lot more comfortable. On the way home, I had issues with the pain medication, and Dr. Derrington was available to take our call and get what I needed. They are a super stellar staff and I highly recommend them!

N.

8/06/2026

I had an outstanding experience with Dr. Derrington. From the moment of my visit for cervical radiculopathy, he took the time to perform a thorough history and comprehensive physical examination. His depth of knowledge, thoughtful approach, and ability to explain my condition and treatment options gave me great confidence in my care.What truly sets Dr. Derrington apart is his genuine commitment to his patients. His follow-up after the visit was exceptional, ensuring my questions were answered and that I was making progress. I never felt rushed and always felt heard.Dr. Derrington is an outstanding physician who combines exceptional clinical expertise with compassion and professionalism. As a physician myself, I especially appreciated his thoroughness, clinical judgment, and dedication to excellent patient care. I highly recommend him to anyone seeking expert, patient-centered care.

Mario H.

7/11/2026

Great experience, awesome people, healing nicely! Will continue to be a client! Thank you Dr Derrington, Ibrahim, Melonie, and the rest of the staff. You’re the best! MH

Rebecca Feasel

7/06/2026

Dr. Derrington is my go to doctor for all things PRP (platelet rich plasma)! I’ve had a frozen shoulder, IT band issue, severe back pain, and a torn meniscus in my knee, that were all treated with PRP and are completely resolved. Super thankful for this option! It has saved me thousands of dollars and saved me from surgeries. Thanks Dr. Derrington for your amazing services and knowledge.

Kristi Hennessy

6/28/2026

The office staff was prompt, efficient and caring. They have also followed up on me post-procedure.

Thelma Yap-Wiens

6/28/2026

I was taken care of very well from the start of the consultation to the end of the procedure.. Everything about the Ultrasound findings and treatment were thoroughly explained. Teresa, the phlebotomist, was a sharp shooter, who collected the large amount of blood to be concentrated with just 1 needle stick. Ashley, Dr Worley’s assistant was very kind and Dr. Worley was very professional. I had a very good experience overall.

Michael Zhu

6/18/2026

I got PRP done with Dr. Derrington in Sept 2024 for severe chronic pain in my low back and down my left leg caused by a herniated disc in my L4-L5 and it magically and completely cured my pain when epidural steroid injections didn't work.My pain was so bad that I couldn't sleep for more than 1.5 hours at a time every night and couldn't even stand or walk. I tried multiple rounds of epidural steroid injections and they had helped cure my pain in the past with the herniated disc, but this time would only help for 1-2 months and the pain would come right back. After getting PRP done, the pain slowly started going away, and by the 3rd or 4th month, I was practically pain free. It was magical. It's now been almost 2 years and I'm still pain free. The treatment was worth every penny and I'd recommend it to anyone if the epidural injections are not helping.

Lee Blazejewski

6/17/2026

My experience with Dr. Worley was exceptional. She asked about prior trauma history and treatments on my knee, before performing a thorough hands-on physical exam and in-office ultrasound to determine as clearly as possible my knee's anatomic health. Relevant structures in my knee were demonstrated and discussed as she imaged them. Based on these preliminary findings, non-invasive therapeutic options were presented, but MRI was ordered for more detailed information. These images were subsequently reviewed with me in the office (zoom session was an option) and a definitive treatment with potential expectations presented. Dr. Worley is a thoughtful empathetic listener and excellent educator. Her training and experience gives me confidence in obtaining the best possible treatment outcome.

KLM

6/14/2026

Amazing experience, amazing results!! Everyone is super friendly and super helpful. When I first saw Dr. Derrington, both of my shoulders had issues. He suggested PRP on the L, but the R was too damaged. So, I started with PRP on my L shoulder, and felt results, but ended up injuring it in PT and ultimately needed surgery on that as well. I had my L repaired in Jan 2025, followed by Stem & PRP when my stitches were removed, then did the same on my R shoulder in March 2025. I cannot be more thankful! After having 2 previous surgeries on my R shoulder several years ago, and compariong the recoveries, getting the stem/PRP made ALL the difference! I was back to work in June, and by October, I had both strength and range, without issue. I still have full range on both shoulders, and zero pain!! Dr. Derrington and his staff are patient, kind, and actually put the client's best interest first. There was very little pain in all procedures. Dr. Derrington numbed the areas and he placed the Stem/PRPs throughout the injury sight, which I know helped the healing process. He and his staff were also very responsive with my questions, usually the same day! He and his staff have all of my gratitude and highest recommendation!!!

Shann Ruggles

6/10/2026

DOCTOR MELANIE WORLEYS PAIN RELIEVING TECHNIQUES ARE NOTHING SHORT OF MIRACULOUS!!MY MANY PRAYERS in DESPERATION HAVE BEEN ANSWERED TODAY &GOD HAS BELIVERED ME UP UNTO THIS AMAZING PROFESSIONAL WOMAN AND THIS *FEROCIOUS SI SACCRUM PAIN I HAVE BEEN HAVING SINCE MAY 1ST, 2026, HAS BEEN COMPLETELY ERRADICATED AND THE FLAIREUPS HAVE STOPPED!!I WAS SO VERY ASTONISHED & GRATEFUL, I WAS WEEPING IN RELIEVED EMOTION AT THE FRONT DESK?!BECAUSE THE RELENTLESS, HORRIBLE PAIN HAS FINALLY BEEN ELIMINATED!!THANKYOU SO VERY, VERY MUCH!IM IN ETERNAL GRATITUDE AND STAND IN AWE OF THESE BRAND NEW PAIN RELIEVING TECHNIQUES!!GOD BLESS YOU & YOUR AMAZING STAFF!!YOU HAVE GIVEN ME MY LIFE BACK (LITERALLY,)THANKYOU SO VERY VERY MUCH;,YOU ARE A "GODSEND" INTO MY LIFE; & AFTER ALL THE DOZENS & DOZENS OF DOCTORS IVE SIFTED THRU 24/7 HERE LOCALLY IN CARLSBAD FOR THE PAST MONTH;IM ORIGIONALLY FROM 4000 MILES AWAY IN PNW (PACIFIC NORTHWEST STATES AND THE TERRIBLE SACCRUM PAIN STARTED MAY FIRST 2026, HERE IN CARLSBAD FROM LIFTING HEAVY GEAR BAGS AND CARRYING UPSTAIRS MULTIPLE TIMESIM LOOKING FORWARD FOR THE FIRST TIME TO LIVING A PAINFREE LIFESTYLE FOR THE FIRST TIME SINCE MY SACCRUM INJURY STARTED MAY 1ST ON San Luis Obispo@!God Bless You ETERNALLY AS WELL AS ALL OF YOUR STAFFWITH MUCH GRATITUDE,SHANN D RUGGLES

Joe Roberts

6/08/2026

Great experience. My wrist feels 100% better! I had major issues with basic articulation and had constant pain even at rest. I have zero pain and full range of motion again. I'm extremely happy with the results.

Connie Buckley

5/28/2026

Knowledgeable caring professionals, looking forward to starting treatment ther with Dr. Worley

Ken C

5/27/2026

Dr Derrington is an awesome Dr. First and foremost, he's very kind a caring doctor. You don't get the feeling like he's trying to rush you or your just a number. He honestly cares. He thoroughly exams your areas of pain. When you have having your injections, he's very precise with his needle placements with the use of ultra sound (and numbs you so it doesn't hurt). And lastly, he doesn't try to up sell you. He suggested PRP for me. I asked if I should also do stem cells; He said no, not for your injuries. PRP should be good. Some doctors might push for more with profits. Not Dr Derrington. If you are looking for PRP and/or stem cell injections, I recommend him whole heartedly.

dieter Swank

5/26/2026

It has been just over two months since I had stem cells injected into my right shoulder to help with a labrum tear. I am able to do things I have not been able to do for the past few years and I feel like the healing will continue. The only thing traditional doctors said was that eventually I would need to have my shoulder replaced. I feel like this injection has given me a new lease on life. The team was outstanding. I went to several other offices on both sides of the border. This team wanted to look at all the medical records that were available before they told me I was a candidate for stem cells. The whole team was very professional and made me feel comfortable throughout the process.

Paula Halstead

4/24/2026

Stem cell worked like a charm for my torn labrum… highly recommend

Jeanne s Arndt

4/07/2026

Dr. Derrington has helped me twice now. First for hip issues and second for low back. Both times I left with greatly reduced pain. He takes time to explain and be sure you understand your body as well as what we hoped to achieve with a procedure. His staff is knowledgeable and kind. I highly recommend him.

Jonathan K.

2/14/2026

Dr Worley treated my knees, hip and SI joint, and the treatments made a night and day difference on my torn meniscus knee. The pain is nearly all gone and it was bad before the treatment. She was efficient, knowlegeable, informative, and easy to talk to. She explained options and the details of scientific studies relating to my prp procedures. She brought to my attention the details that other doctors neglected to tell me about the prp procedure that could help increase my outcome. I was treated in Colorado, but i like dr Worley so much as a practitioner that I am considering traveling to California for my next treatment so I can have it done by her. I really trust and appreciate her expertise

Dulce Alejandra

2/14/2026

Dr.Worley, is an exceptional orthopedic doctor! As someone who stays very active, I appreciated her deep understanding of sports and athletic injuries. She took the time to explain my condition clearly, created a tailored treatment plan, and genuinely cares about getting patients back to their best performance. Highly recommend for anyone looking for knowledgeable, proactive, and approachable care.

Jane Munce

2/05/2026

I can't say enough fabulous comments regarding Derrington Orthopedics. From the front office staff to the doctor and his assistant. They got me in when I was really hurting, found the root of the problem and fixed it!!. Well done!!

Linda FARLEY

12/19/2025

My experience is excellent. 2 1/2 months after treatment and physical therapy I am felling good…anticipating a full recovery in a few months. I have complete confidence in Dr. Derrington.

Lee Anderson

12/16/2025

I had a PRP and Stem Cell treatment for my lower back problems in December 2024. Dr. Derrington and his staff have been very helpful in working with me to diagnose the issues and come up with a treatment plan to alleviate the pain I have been experiencing for over 2 years. Dr. Derrington developed a plan targeting the lumbar region with strategic injections at the location of pain which use my own blood and stem cells for the treatment. The day finally arrived and I was greeted by a friendly staff who drew my blood and made me feel comfortable. Dr. Derrington skillfully injected the PRP and Stem Cells in the places outlined in the treatment plan using the latest technology. The procedure was only mildly painful.After the procedure, I was a little sore - but that faded fairly quickly. I was encouraged to keep moving and do physical therapy (which I was already doing) to strengthen my core and back muscles. I also did a lot of stretching as well.After about 4 weeks, I could really feel changes going on my lumbar region, and I was able to sit and stand for longer periods of time than prior to the procedure. It has been 8 weeks now and there have been days where I forgot about the constant stiffness and pain in my lumbar region. In terms of activity, I am doing everything I did before the procedure with the exception of lifting heavy weights. I now use resistance bands instead.I am amazed at the results and have been very pleased with the outcome and process thus far.If you have back pain and do not want to do surgery, you may want to check this procedure out. There is a wealth of knowledge about PRP and Stem Cells online and I highly encourage you to learn as much as possible as it may be a very good alternative to help manage pain and get you back to enjoying your life again.Update: 12/15/2025 improvement in my condition is still in place. No limitations and can do everything I want physically.

Russ Lane

11/22/2025

I had terrible planter fasciitis pain in my heel. I also had some painful arthritis in my hip. I came to the Derrington group to find some relief without surgery. I had both the PRP and the bone marrow concentrate. The healing process has been a steady improvement curve. It’s improved my quality of life significantly. It’s been a very positive experience.

Sabrina Wilbur

10/27/2025

I was so happy with the treatment I received from Dr. Derrington and his staff, including all the detailed consultations and information I received prior to the procedure. It has been just over a month since my PRP treatment and the pain in my neck and my headaches have greatly diminished. I'm looking forward to coming back and having more treatments in other areas. Everyone at the clinic is very kind, professional, helpful and competent.

Tiffany C

5/27/2025

I found out I tore my Meniscus and damaged my ACL but did not feel comfortable doing surgery. I was referred to Dr. Derrington by my PT. I got the Prp shot in December 2021. I followed directions post procedure and I am glad to say that I have returned to soccer, Ultra training and workouts! I highly recommend to consider a PRP shot instead of just defaulting to surgery. Very happy with my decision!

Vanessa Grant

5/09/2025

I had prp and bone marrow injections into my hip one year ago. I already had 1 hip replacement and wanted to go the natural route this time. I'm 68 years old and am pleased to say I have completely recovered, without pain, and am back to cross fit. I'm so pleased with these results.

ks

3/22/2025

I've had pain for several years from damage to my elbow due to racquetball. Doctors tried multiple steroid injections as well PRP. Learned to play left-handed which kept me on the court. Then last year my physical therapist recommended Dr Derrington as he had successfully treated the PT. Dr Derrington performed his version of a PRP injection and after a healing period I was finally able to use my right arm again with no pain at full power, and it's been almost a year!

alevode

2/10/2025

I went in Dec 2024 to see Dr Derrington because my hip was bothering me. I have a torn labrum on my right hip and have been getting PRP on it since 2021. All the PRPs that I got from the previous ortho MD would not eliminate my pain. I heard about Dr Derrington from two friends, both praised him for the level of quality of his PRPs (highly concentrated plasma, that helps with the healing quickly). I work from home on a desk and sitting for 8-10 hrs pert day really hurts my hip. I am also very active at the gym and with pain in the hip I cant do any lower body exercises. So I got PRP in mid Dec 2024, within 5 days I was pain free, within 10 days I was back in the gym slowly getting into lower body exercises with weights and comfortable range of motion. Now 2 months post PRP processure I cant tell the difference between the "good" and the "bad" hip, both are pain free. I am really happy with the results.

Lisa Hurlbut

12/10/2024

Dr. Derrington and his staff are amazing!! I went there for my wrist as I was unable to do all normal activities without pain. I had PRP treatment and noticed a significant improvement within the first couple weeks. It’s been a couple months now and I no longer wear a brace and am able to almost everything I could do before I started having issues and am excited to be able to be normal again!! Highly recommend Dr. D and his team!!!

Yas Sexton

11/09/2024

I did a PRP treatment on a knee that had been bothering me for years. The procedure was quick and simple and very effective. It’s been a few months now and still feeling so much better.

Carly Gordon

10/02/2024

Our daughter is in the middle of her senior year XC season, and dealing with bursitis. We came to Dr. Derrington after following PT protocol and she needed something more. We were anxious about getting a cortisone shot because of the long term side effects. Dr. Derrington and his staff were professional and friendly. He evaluated my daughter's condition and suggested nano dose cortisone. She felt great the next day and returned to running the following day. I loved that Dr. Derrington suggested supplements as an alternative to NSAIDS.

Allissa Thompson

9/02/2024

I'd been struggling with persistent swelling and a Baker's cyst on my left knee, the result of cartilage loss from 30 years of running and in more recent years, the demands of mountaineering. A cortisone shot provided only very temporary relief with immediate setbacks if I returned to running, and I wanted to avoid having a series of shots and risking further damage to my knee. My coach and gym community referred me to Dr. Derrington, and the consultation for PRP treatment left me feeling very at ease and confident that this would offer the best long-term results and allow me to continue running and climbing.Dr. Derrington and the office staff communicated everything thoroughly so that I knew what to expect, and the treatment in January was so quick and painless. I resumed strength training within a week with restrictions and a carefully prescribed 12 week plan for returning to sport-specific training with a full range of motion. By 8 weeks, I had resumed running, and was once again squatting and deadlifting from the floor- without swelling the next day. 12 weeks after treatment, I took an 8-day mountaineering course on Mt Rainier to prepare for climbing Denali, which called for strenuous lifting, sled dragging, and squatting in and out of tents each day. I felt strong, and not once in those 8 days of intense daily activity did I have any knee pain, swelling, or reduced range of motion. It felt great to get back to 100% and really boosted my confidence for future climbs.The biggest surprise is that even after I felt like I was back to 100%, my left knee has continued to improve, and it now feels like my stronger knee. I'm contemplating having a PRP treatment done on the other knee! It's a no-brainer when you've experienced the results and know through all the followup communication that your doctor truly cares about his patients. So grateful!

Krista Whalen

8/28/2024

I worked with Dr. Darrington on several building discs in my back, and they do seem to be healing up nicely. I’d done rest and PT beforehand for six months, and still had a lot of back pain. Doing the PRP injections seemed to prompt much better healing.

Raluca F.

7/31/2024

Dr Derrington is the best doctor …. I highly recommend him I did 4 PRP treatment there were very successful….

Kevin O'Connor

7/16/2024

Dr. Derrington provided an exceptional experience. I was dealing with a knee issue, and he was able to help me get the appropriate imaging to diagnose a torn meniscus. He recommended a PRP treatment which he was able to inject under the guidance of ultrasound. I was able to rehab and am now back to running and weightlifting without limitation.He was also able to help a family member and diagnosed a non-musculoskeletal medical condition and was able to set him up with the appropriate team to treat him.Thank you to Dr. Derrington and his entire team!

Emilie

6/19/2024

Five months after the PRP injection in my shoulder and continued physical therapy and I’m getting close to 100% recovery from frozen shoulder and a rotator cuff tear.

April Thompson

6/11/2024

I have been struggling with knee pain for the past 20+ years. Diagnosis was bone on bone and osteo arthritis. Each time I went to the orthopedist I was told I was too young for surgery but they could shoot someCortisone in there and that should do the trick. WRONG! Cortisone just hurt and didn’t change anything. My husband heard about PRP on the radio and urged me to get a consultation…I did and I had PRP done in both knees. I hiked the Trans-Catalina trail with my daughter, something I couldn’t have done before, and am happy to say goodbye to knee pain and I only wish I knew of this procedure sooner. Life is much better with two, fully functioning, healthy knees…thank you Dr. Derrington

Evelyn Blaemire

6/01/2024

I've been a Nurse Practitioner for over 30 years and have had regenerative medicine procedures elsewhere. Dr. Derrington is a stellar physician, diagnostician, injector, and person!!! I won't go anywhere else now. His procedures relieve pain and enhance mobility. He is a rare find, and his procedures are effective!

Carlos Delherra

5/29/2024

Derrington Orthopedics helped me get stem cells for my hip arthritis. I had very good results and a year later am doing so much better. I highly recommend this treatment and the staff and doctor here are world-class. I had excellent service and a great experience and highly recommend them!