Platelet-Rich Plasma (PRP)

Blood is made up of plasma, red and white blood cells, and platelets. Platelets function to help with clotting of blood, but they also contain growth factors that aid in the healing process. Platelet-rich plasma, or PRP, is plasma that contains a higher concentration of platelets than normal. The purpose of PRP injections is to increase the number of growth factors into and around an area of soft tissue damage, thus stimulating and speeding up the healing process. The ultimate goal is decreased pain, improved function, and return to sports and activities.

Who May Benefit From PRP?

In the lower extremity, ​it is often used for chronic tendinopathy, such as Achilles tendinosis, or chronic ligament injury or damage, such as plantar fasciosis.

Procedure Details


Certain anti-inflammatory medications and corticosteroids should be stopped prior to the procedure as they may decrease the effectiveness of the injection.


  • A local anesthetic block may be performed to numb the area around the injection site.

  • Blood is drawn from the patient's arm and then centrifuged.

  • The PRP is prepared and then injected around the affected area.


Every doctor may have a different protocol, so it is important to follow your doctor's guidelines and remain compliant. Some post-procedure protocol may include limitations of weight-bearing status +/- immobilization in a boot, limitations with activity level, and avoidance of certain anti-inflammatory medications during the healing process.