By Deborah Westergaard, MD | Pain Experts | Dallas–Plano “PRP is just spinning blood and injecting it.” A colleague of mine once called and asked how much blood I draw for a PRP knee procedure.I was honestly flabbergasted—because that question misses the entire point. That’s like asking, “How much anesthesia do you give?” Any experienced physician knows the answer depends on the patient, the pathology, and the plan. When a patient comes in with knee pain, I don’t simply inje