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Repeated Cortisone Shots vs. Hyaluronic Acid: What New Research Shows Happens After the Injection
The Shot That Helps Today and Hurts Tomorrow
Cortisone injections are the most common first-line treatment for arthritic joint pain in American orthopedics. They work — for a few weeks. What's become harder to ignore is what the research shows about what happens with repetition.
What the Research Found
Recent studies tracking patients after knee injections have sharpened a picture that's been emerging for years:
Repeated corticosteroid injections are associated with accelerated cartilage loss. Patients receiving serial cortisone shots show greater cartilage volume decline on imaging than those who don't — the very tissue you're trying to preserve.
Hyaluronic acid (gel) injections don't carry the same cartilage toxicity signal. The evidence for HA's benefit is modest — it's a lubricant/anti-inflammatory, not a regenerative treatment — but it doesn't appear to actively damage the joint the way repeated steroids do.
The clinical pattern matches: the patient who feels great for six weeks after each shot, then needs the next one sooner, then notices the relief doesn't last as long. That's not the disease progressing despite treatment — in part, it's the treatment contributing to progression.
None of this means a single cortisone shot is malpractice. It means cortisone is a short-term pain tool with a long-term cost, and a treatment plan built on repeating it indefinitely is a plan to arrive at joint replacement faster.
Why This Keeps Happening
Cortisone is fast, cheap, covered by insurance, and makes both the patient and the doctor feel like something was done. The damage is invisible — it shows up on cartilage, months later, attributed to "the arthritis getting worse." The feedback loop that would correct the practice doesn't exist.
What We Do Instead
Our position is the one the research supports:
Cortisone has a narrow role — occasionally, a single injection to calm a severe flare so rehab can proceed. Not a maintenance program.
Hyaluronic acid is the less harmful conventional option for patients who want an insurance-covered injection — modest benefit, no cartilage toxicity signal.
**PRP is the biologically active option** — it aims to improve the joint environment rather than suppress it, which is the opposite pharmacology of a steroid.
Rehab is the foundation regardless of what's injected.
If you've had three or more cortisone shots in the same joint and it's still deteriorating, the honest question isn't "when's the next shot" — it's whether the shots are part of why it's deteriorating.
Get an Honest Second Opinion
Call Carolina Nonsurgical Orthopedics at 919.719.2270 or schedule online. Offices in Raleigh and Cary, NC. We'll look at what your joint has been through — including what was injected into it — and build a plan that doesn't trade next month for next year.
About Your Physicians
Dr. Matthew Kanaan
Nonsurgical Orthopedic Specialist
Founder of Carolina Nonsurgical Orthopedics. Fellowship trained in sports medicine at Duke; residency in family medicine at Duke, where he served as Chief Resident.
Dr. Pierce Knox
Nonsurgical Orthopedic Specialist
Fellowship trained in nonsurgical sports medicine at Penn Medicine; residency in primary care at Christiana Care.
