Key Takeaways:
Perinatal tissue injections and platelet-rich plasma (PRP) are both regenerative options offered at Austin Foot and Ankle Specialists, but they differ in how they’re sourced and when they may be most appropriate. Dr. Thomajan and Dr. Chica first evaluate the specific injury, tissue involved, severity of damage, and your overall health before recommending a treatment plan featuring these solutions
Regenerative medicine is an increasingly important part of conservative foot and ankle care. Two of the more common options our patients ask about are perinatal tissue and growth factor injections (PTGF) and PRP. Both are designed to support your body's healing response, but they use distinct sources, and each may be better suited to particular injuries or treatment goals.
Table of Contents
How Do Perinatal Tissue Injections Work?
As Dr. Thomajan explains in this video, PTGF injections use donated tissue—such as amniotic fluid or umbilical cord tissue—that's screened and processed before use. These products are regulated by the U.S. Food and Drug Administration (FDA) as human cell and tissue-based products, which means donor screening and testing requirements apply, similar to other transplanted human tissues.
According to the FDA's overview of tissue and tissue product regulation, these requirements exist specifically to reduce the risk of disease transmission through donated tissue. The injected material contains proteins and growth factors that may help support the body's normal healing response.
The goal is to place that material directly around the injured or degenerative tissue, such as a damaged tendon, ligament, fascia, or joint. Instead of simply masking pain, the treatment is intended to influence the local healing environment at the site of the problem, which may help reduce inflammation and support tissue repair when an injury hasn’t fully responded to more basic conservative care.
If you've heard these described as "stem cell" injections, our article on that terminology explains what's actually in the product.
What Is Platelet-Rich Plasma Therapy?
PRP treatment starts with a small sample of your own blood. It’s spun in a centrifuge to separate and concentrate platelets, which contain proteins and signaling factors involved in your body's normal healing response. The concentrated plasma is then injected back into the area of injury, so no donor tissue is involved.
PRP is typically placed around an injured tendon, ligament, fascia, or joint where healing has stalled, or tissue remains chronically irritated. The intention is to deliver a higher concentration of your own platelets directly to the site and stimulate a stronger local repair response, rather than simply covering up pain.
This therapy is an option for problems such as stubborn plantar fasciitis, Achilles tendon injuries, ligament damage, and certain joint-related conditions when more basic conservative treatments haven’t produced enough improvement.
Perinatal Tissue Injections vs. PRP: Which Treatment Might Be a Better Fit?
Dr. Thomajan and Dr. Chica don’t choose between PTGF and PRP injections based on a single diagnosis. Two patients with Achilles tendinopathy, for example, may receive different recommendations depending on:
- How long the injury has been present.
- How much tissue degeneration is visible.
- What treatments haven’t been successful.
- How well the area is likely to respond to a biologic injection.
Perinatal tissue products may be recommended when we want to provide a broader mix of growth factors and signaling proteins to an area with poor tissue quality or where healing has been especially slow.
PRP may be considered when the goal is to stimulate a stronger healing response, particularly for chronic tendon, ligament, or fascia injuries that haven’t responded adequately to rest, bracing, orthotics, or physical therapy.
Our Austin foot doctors are dedicated to a whole-person care philosophy. Age, general health, medication use, circulation, the condition of the surrounding tissue, imaging findings, and whether the injury is acute or long-standing all influence podiatric care recommendations.
Who Tends to Be a Good Candidate for Regenerative Medicine?
Regenerative injections aren't right for every injury, and results vary by patient and condition. At Austin Foot and Ankle Specialists, many of our patients experience success with PTGF and PRP if they have:
- Chronic tendon injuries, such as Achilles tendinitis, that haven't fully resolved with rest and physical therapy.
- Stubborn cases of plantar fasciitis that persist despite conservative care.
- A preference for exploring non-surgical options before considering foot and ankle surgery.
Dr. Thomajan and Dr. Chica encourage you to ask many questions about both options. Here are some to consider:
- What does my exam or imaging show about the condition of the injured tissue?
- Why are you recommending this option over the alternatives?
- Will I need to limit walking, exercise, or work activities afterward?
- Will I also need physical therapy, bracing, orthotics, or another treatment alongside the injection?
- How many injections does this typically take, and what does recovery look like?
- Are there any health conditions or medications that could make me a poor candidate?
- What are the main risks or side effects I should be aware of before treatment?
- How long should it take before I notice meaningful improvement?
- How will we decide whether the injection worked well enough or whether another step is needed?
- What happens if this doesn't fully resolve the injury?
- Is this treatment likely to be covered by my insurance?
Bringing these questions to your consultation gives you and our team a clearer starting point than choosing a treatment based on the name alone.
