Leading Specialists in Regenerative Medicine and the Diagnosis and Treatment of Musculoskeletal Conditions, as Well as Complex, Image-Guided Injections of your Body’s Own Healing Agents to Treat Orthopedic Issues.

At Derrington Orthopedics – Interventional Sports and Spine, we provide innovative orthopedic care to treat acute and chronic injuries affecting all areas of the body. Dr. Stephen Derrington, an expertly trained physician, is able to provide accurate diagnoses through the use of a comprehensive history, physical examination, and review of imaging. Treatments utilize state-of-the-art technology to safely and accurately treat these conditions, harnessing the body’s innate ability to heal itself. Our goal is to help all of our patients return to the activities they love to do.

Schedule an Appointment

Conditions Treated


  • Tennis & Golf Elbow
  • Tommy John Surgery (UCL Ligament)

Foot and Ankle

  • Ankle Ligament Tears
  • Ankle Osteoarthritis
  • Ankle Tendon Tears
  • Toe Osteoarthritis

Hand and Wrist

  • Carpal Tunnel Syndrome
  • TFCC Tear
  • ​Thumb Osteoarthritis


  • Bulging Disc
  • Continued Pain After Lower Back Surgery
  • Herniated Disc
  • Neck Pain
  • Sacroiliac Joint
  • ​Spinal Stenosis
  • Spondylolysis
  • Torn Disc
View All Conditions

Request an Info Packet

Where Are You Experiencing Pain?

Contact Us

  • Please use this form for general information purposes only. DO NOT send personal health information through this form. Specific patient care must be addressed during your appointment.
  • This field is for validation purposes and should be left unchanged.

Derrington Orthopedics

Providing California with Next-Generation, Regenexx® & Platelet Procedures for Osteoarthritis, Common Joint Injuries and Spine Conditions.

Patients Treated


Successful Procedures and Counting...


Using Your Own Cells to Treat Arthritis, Joint Injuries & Spine Pain

Learn About the Top Non-Surgical Procedure for Treating Joint Injuries, Arthritis, Spine Pain & Other Orthopedic Conditions.
Register Now


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 T.

After over two years of struggling with severe tendinitis in both arms, multiple treatments including cortisone shots, and PT, Dr. Steve’s (Derrington) PRP gave me the breakthrough! I actually started healing and after about six months I was back to doing all of my exercises at the gym without pain! The whole process was a great experience. Dr. Steve took the time to explain what was going on, set realistic expectations for healing and followed up to see how I was doing. The staff was professional and efficient. It’s awesome to be back to normal and have use of my arms. Thank you!!

Gail G.

Dr. Derrington has been fantastic in so many ways, I don't know if there is space enough to say what I want to say. As a disclaimer, I'm a paramedic and have worked in health care for nearly 30 years, so I've worked with hundreds of physicians, either observing them or working side-by-side, so based on my experiences, in general our healthcare system, in general, scares me. First, he is personable and listens to you. Second, he actually does a physical assessment!!! Yeah, that shouldn't be a surprise, but I've lost count of physicians, including orthopedists, who either suck at assessing someone or don't bother. It's all cookie cutter approach. Third, he is responsive and follows up, and Fourth, he is skilled and the results show it: Proximal Hamstring: His PRP of my right hamstring made it 90% better within a week. I was stunned because not only had it been a wreck for years, making sitting painful, I had undergone a painful PRP injection at another physician's office without result. I realize treatments don't guarantee results, but for $2000 cash, a follow-up phone call or email would have been nice. Low Back: my legs were still having issues after lower back surgery (fusion, disc replacement), so Dr. Derrington did PRP injections along the areas commonly scarred or affected by surgery. Again, to sound like a broken record, the symptoms of heaviness in my calves, and strange tightness in my right medial quadriceps, all but disappeared. Bottom line, and I said this to Dr. Derrrington, it is a pleasure to have a physician who actually thinks rather than mindlessly following some cookie-cutter method, and even if the treatment did not work, I would still think highly of him. He is what I wish all physicians were like.

Anthony R.

I have gone to Dr. Derrington twice for injuries over the last couple years and highly recommend him. For regenerative medicine in the US I wouldn’t go anywhere else. He helped by lower back injury with the Regenexx PL disc procedure and also my shoulder tear with PRP/amniofix injections. I found a significant benefit both times I went to him with orthopedic injuries and am very grateful not to have to have surgery .

Joshua M.

Dr.Derrington and his staff are great to work with. They really care about their patients and want to help in every way possible. He seems very knowledgeable and cares what is best for his patients . He went out of his way to make sure I was not in pain and followed up days later to see I was doing well. I would recommend him to anyone who needed back, knee, or shoulder pain services.

Traci L.

Amazing results. Very easy process and friendly staff.

Michael C.

I had treatments done a month ago with Dr. Derrington at Healthlink Regenex in Oceanside (highly recommend) for my debilitating back and hip pain. I have bulging disks, arthritis and degenerative disk decease in my lower back, plus damaged tendons & ligaments in my left hip. Taking pain killers or having actual surgery was not an option for me. I've heard & seen too many horror stories and just didn't want to go there! (Not judging anyone here) So I had PRP & Prolotherapy done. They were great at keeping me comfortable during the whole procedure. I'm happy to report that I've been pain-free for 30 days! Free of the debilitating daily pain that made it to where I couldn't even walk.

Andie F.

I was extremely impressed with their quick attention to my husband's condition and service provided. Dr. Derrington and Jessica are valuable team members to this office. Jessica went above and beyond which is much appreciated. Thank you Health Link Medical Center.

Lisa G.

I had stem cell and PRP treatment on my knee in June 2019 and a booster PRP in September 2019. I have been skiing every day for the last 30 days and my knee keeps getting stronger with each turn. Last year it would swell up and it was painful, I did not think I would be skiing this season. I am celebrating my 70th year of skiing. Thanks Dr. Derrington

Richard C.

Dr. Derrington saw me for my torn LCL. I received a couple injections of PRP from my orthopedic surgeon before seeing Dr. Derrington and I was expected to make a full recovery without surgery. Both of those injections were unsuccessful, and did not help one bit. Luckily I met Dr Derrington and through his expertise in PRP injections and proper physical rehabilitation I was able to make a full recovery in less than two months. I am now back doing jiujitsu and weight lifting like normal. I recommend him as a first point of contact because the sooner you get in to see him the better.


Dr Derrington is great and Andrea and Emily have been extremely responsive and helpful. I picked the right organization for my procedure!

Michael G.

Semi large disc herniation l5-S1. I am a 38 year old active guy who enjoy golf, surfing and other outdoor activities. It was not until I spoke to Stephen I was suggested alternative methods for dealing with my injury. We spoke about anti inflammatory foods and supplements to lower inflammation. I believe a combination of proper dedicated training - both mobility and strength, lowered inflammation and the regenexx epidural shots which shrunk the herniation (4mm) sealed the deal for me.


Dr. Derrington was thorough, compassionate and informative. He explained my back problems using a computer program which enabled visualization of the spinal cord which made it easier for me to see and understand my back issues. I'm definitely looking forward to the next visit.


Dr. Derrington was terrific. He really listened to me explain the details of my symptoms and history. I felt like he understood what my problems are and sought to address them with a thorough exam and explanation of how my spine and related muscles and ligaments all work together. I felt comfortable asking questions and like he cared


We Welcome New Patients

Derrington Orthopedics – Interventional Sports and Spine is proud to bring Regenexx Therapy and Advanced Platelet Procedures to the west coast. Regenexx procedures offer a viable alternative to surgery, and patients experience little down time and avoid the long and often painful rehab period that typically follows surgery.

Medical Center in Carlsbad and Laguna Hills, CA

Carlsbad Office

Laguna Hills Office

Text Us