Acute vs. Chronic Achilles Tendonitis: Why the Distinction Matters
Chronic Achilles tendinopathy is a fundamentally different pathological entity from acute tendonitis. In chronic cases, the inflammatory phase has long since passed; what remains is a degenerative, poorly organized collagen matrix. Anti-inflammatory treatments like cortisone injections may actually accelerate tendon breakdown in chronic cases.
How PRP Works at the Molecular Level
Platelet-Rich Plasma (PRP) therapy is uniquely suited to chronic tendinopathy. When your blood is drawn and concentrated in a centrifuge, the resulting plasma contains platelets at 5 to 10 times their normal concentration. Upon injection, these platelets release growth factors including TGF-β, which drives collagen synthesis, and PDGF, which stimulates the proliferation of tenocytes — the cells responsible for tendon repair.
Ultrasound-Guided Precision Injection
Dr. Katz performs all Achilles PRP injections under real-time diagnostic ultrasound guidance, allowing precise needle placement within the area of degenerative change and maximizing therapeutic contact with the tissue that needs it most.
Outcomes at 6 and 12 Weeks
Most patients report a meaningful reduction in pain and morning stiffness by the 6-week mark. By 12 weeks, the majority of good candidates demonstrate functional strength recovery sufficient to return to their previous level of activity. Explore all Achilles tendon treatment options.
Schedule your consultation today and find out whether PRP therapy can get you back to the activities you love.

