The concept of PRP (platelet rich plasma) injections is to stimulate the body to potentiate a healing response. PRP has been shown to recruit reparative cells. PRP is injected in an inactivated form and once injected into the body it is activated by collagen in connective tissue. The PRP then releases its growth factors and cytokines, which in turn stimulate local stem cells. The PRP also inhibits excess inflammation, which causes scar tissue. The end result is healing of tissue to its as normal as possible physiologic state.
INDICATIONS
PRP can be utilized on any muscle or tendon but the following are the most common areas injected:
- Shoulder-rotator cuff partial tears
- Tennis or golfers elbow
- Osteoarthritis of the knee
- Achilles tendon tears
THE PROCEDURE
PRP injections are prepared from one to a few tubes (20-60 cc) of the patient’s own blood. It is mixed with an anti-coagulant and then centrifuged, or “spun down”. The platelet poor plasma is withdrawn leaving a small concentration of platelet rich plasma. This amount (3-10 cc) is injected into the injured tissue.
POST PROCEDURE
While responses to treatment vary, most people will require 2 to 6 sets of injections of PRP. Each set of treatments is spaced 4 to 6 weeks apart. Usually positive development is evident after 2 treatments. Often satisfactory results may occur even sooner, but cannot be predicted with certainty. A good program of physical rehabilitation and laser treatment is recommended to fully rehabilitate the injured area.
For more information and to book a consult regarding PRP, please call 416-465-0400 or email mrajwani@rehabclinic.ca.