PRP for Plantar Fasciitis: A Longer-Lasting Answer to Chronic Heel Pain
For stubborn heel pain that does not settle with stretching, orthotics, and rest, recent studies show PRP gives better and longer-lasting pain and function results than cortisone in the medium term, about 3 to 6 months. Cortisone helps fast but the benefit fades and can weaken tissue over time.
If you are in West Hartford and have been told to just live with heel pain, Dr. Knopp offers a direct evaluation to see if regenerative support is a fit for you.
What Plantar Fasciitis Actually Is
Plantar fasciitis is the most common cause of chronic heel pain. Modern understanding shows that chronic cases are a degenerative fasciopathy. This means tissue breakdown, not a purely inflammatory problem.
This is the same degenerative tendon idea we see in other stubborn tendon problems. Read more about that in our post on PRP for tennis elbow.
Why Cortisone Helps Early Then Fades
Cortisone reduces pain fast by calming inflammation. But the benefit fades. It does not rebuild the degenerated fascia tissue.
Corticosteroid injections to the heel carry real risks. An AOFAS member survey reported plantar fascia rupture in about 1.5 percent of cases. Heel fat pad atrophy occurred in about 1.4 percent. With repeated injections, the rupture rate rises to about 2.4 percent. Because of these risks, guidance is to limit injections to about 2 to 3 per year. Fat pad atrophy reduces the natural cushion under your heel and can make pain worse.
What the Evidence Shows: PRP vs Cortisone
A 2025 systematic review and meta-analysis pooled 24 randomized controlled trials with 1,653 participants to compare PRP and corticosteroid injections for plantar fasciitis.
| Criteria | PRP | Corticosteroid |
|---|---|---|
| How it works | Stimulates repair of degenerated tissue. | Reduces inflammation and pain fast. |
| Medium term (3 to 6 months) | Better pain and function scores. | Benefit fades. |
| Tissue effect | Aims to rebuild. | Can weaken tissue with repeat use. |
| Main risk | Injection soreness. Uses your own blood. | Fat pad atrophy and rare rupture. |
One important caveat: PRP was not clearly superior to cortisone in the very short term or at one year for pain. PRP is also still considered investigational for this use and is not FDA-cleared as a drug.
Why Ultrasound Guidance Matters
Ultrasound guidance helps place PRP accurately into the degenerated plantar fascia. This precision avoids sensitive structures and targets the area of tissue breakdown directly.
The Upstream Chain: Calf, Foot, and Pelvis
Tight calf muscles, foot mechanics, and pelvis alignment all load the plantar fascia. If the upstream chain is not addressed, the heel keeps getting pulled under tension.
Osteopathic manipulative treatment (OMT) can assess and treat these mechanical drivers. For more on how PRP works in joints and soft tissues, see our PRP guide.
Who Is a Good Candidate
Not everyone is a candidate for PRP. A good evaluation looks at the chronicity of your pain, the health of the tissue on ultrasound, and the mechanical load on the foot. Read more about how PRP compares to cortisone in our PRP vs cortisone comparison.
Sources
Heel pain that survived stretching and orthotics?
That is usually a tissue problem, not an inflammation problem. Dr. Knopp's ultrasound-guided evaluation reviews your candidacy honestly and looks at the calf and foot mechanics driving it.
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