Medically reviewed by Dr. Jeffrey Peng, MD — Board-Certified Sports Medicine Physician Published: February 26, 2026 | Last Updated: February 26, 2026 If you have been told to just live with calcific tendonitis — or to keep getting cortisone shots until you are "ready for surgery" — you have probably noticed the pain always comes back. That is because most conventional treatments only mask symptoms without addressing the underlying calcium deposit. The good news is there is a

Medically reviewed by Dr. Jeffrey Peng, MD — Board-Certified Sports Medicine Physician Published: February 26, 2026 | Last Updated: February 26, 2026 Platelet-rich plasma (PRP) injections have become one of the most promising non-surgical treatments for knee osteoarthritis. However, not every patient experiences the same degree of improvement. In my practice, I have treated thousands of patients with PRP, and while the majority respond well, there are clear patterns in who b

Board-certified sports medicine physician Dr. Jeffrey Peng ranks knee arthritis injections — PRP, hyaluronic acid, cortisone, and stem cells — based on the latest 2025 clinical evidence, safety data, and real-world outcomes.

Board-certified sports medicine physician Dr. Jeffrey Peng explains how ultrasound-guided percutaneous tenotomy with PRP can heal partial rotator cuff tears without surgery — and what the clinical evidence shows.

Osteoarthritis is now recognized as a metabolic disease. Learn the 3-step evidence-based protocol — metabolic health optimization, PRP injection therapy, and targeted exercise — to reduce knee arthritis pain and restore mobility.

Written by Dr. Jeffrey Peng, MD — Board-Certified Sports Medicine Physician PRP can work incredibly well for tendons, joints, and soft-tissue injuries—but a lot of people still get disappointing results. Here’s the pattern I see over and over again: two people get the same PRP injection, from the same doctor, using the same technique—and one improves dramatically while the other barely notices a change. And most of the time, it’s not because the injection was done wrong. What

A brand new study out of the Cleveland Clinic just tracked nearly 1,800 athletes through their knee replacement and recovery — and the results challenge a lot of what patients are being told. Only 53% made it back to sports within a year. But the ones who did? Most were back in just 12 weeks. So what separates the people who return from the ones who don't? As a sports medicine doctor in the San Francisco Bay Area, I treat patients with knee arthritis every week. And this que

If you're over 40 and you've had a shoulder MRI, there's a 99% chance your report says something is wrong with your rotator cuff. Tendinopathy. Partial tear. Maybe even a full-thickness tear. That sounds terrifying. But a brand new study just scanned over 600 random people's shoulders — people with pain AND people without — and what they found completely changes how we should think about these results. Hey everyone, Dr. Jeff Peng here. I'm a sports medicine doctor currently p

Cupping therapy has gained significant attention particularly due to its use by high profile athletes. But does this ancient healing...

There’s a lot of myths around concussion symptoms and treatments and this often leads to confusion about what you should or shouldn’t do...

Hydrodissection is a minimally invasive technique which involves injecting fluid around a target to free it from surrounding tissues.

Take a look at this journal cover from the most recent British Journal of Sports Medicine in November 2020. The cartoon depicts older orthopedic surgeons abiding by the guidelines from the society of arthroscopy. This is back when arthroscopy was king. Today, it continues to be a large source of revenue for orthopedic surgeons. The cartoon also shows younger physicians gravitating towards “EBM.” EBM stands for evidence based medicine. This is the gold standard we should all

Tendonitis and tendinopathies are common orthopedic problems. This article will explain what happens to damaged tendons.

There is a scarcity of high quality data favoring the use of cortisone injections. They provide short term relief but long term harm.

Recommendations from the American Academy of Family Physicians on treating pain from common musculoskeletal conditions.