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In this episode of the Sarasota Neurology Podcast, Dr. Kassicieh discusses Platelet Rich Plasma  and Regenerative Medicine.

Regenerative medicine is a new, exciting branch of medicine which deals with healing injured or damaged tissue with the body’s own natural healing mechanism. To do this, Platelet Rich Plasma (PRP) is extracted from the patient’s own blood. Using blood from the patient eliminates the risk of transmission of blood born disease, viruses and other infectious agents. PRP is then injected into the area of the body that needs intensive healing and tissue regeneration.

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PRP therapy works especially well for injured tendons and ligaments, and is uniquely suited for those difficult knee and shoulder injuries. Even patients who have had knee or shoulder surgery but still have pain can have dramatic benefit and pain relief from PRP therapy.

PRP is revolutionary therapy in that it avoids surgery. It is done as an outpatient procedure, so there is no recovery time or rehabilitation to deal with. If you have joint pain, you may be an excellent candidate for PRP therapy. Call now to schedule an evaluation to see if you would benefit from PRP therapy.

To schedule an appointment, please call (941) 955-5858 or you may request an appointment here.


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A recent report in the Journal of the AMA (De Vos, et al JAMA 2009) reported that platelet rich plasma therapy was no more effective for chronic Achilles tendinopathy than standard, conservative therapy. This study was inherently flawed in its design resulting in incorrect conclusions. Platelet rich plasma is the healing component of blood. It is derived and concentrated from a patient’s own blood and then injected into the affected area. Not all PRP is the same. Blood processing is the key, levels of growth factors are of utmost importance and successful outcomes will vary with the technique, protocol and level of expertise the clinician possesses. Different PRP extraction equipment and how the blood product is handled during this process is also critical.

De Vos et al commented “A limitation of the study was that the amount of platelets and quantity of activated growth factors that were present in the PRP injections were unknown.” This introduces several variables that would invalidate the data and the study’s conclusion:

1. What PRP processing system was used?

2. Were the levels of Growth Factors therapeutic? Therapeutic level ranges  are usually 4-5  times the baseline.

3. No levels or PRP concentrations were taken or reported.

All of these are significant study design flaws that will result in invalid study conclusions. Additionally the study stated “Platelets are slow to activate by exposure to tendon collagen, but it might be that therapeutic pressure within the tendon, a large amount of PRP diffused rapidly out of the tendon thereby reducing its effect.” Additionally thrombin – a critical component in PRP therapy – was not used to activate the platelets. PRP and growth factors will not activate or be as effective if thrombin is not used in this procedure.

Perhaps most significant study design error was that only one PRP injection was given. The study patients, by design criteria, were required to have chronic Achilles tendinopathy that had responded poorly to prior therapies. Chronic tendon injuries, particularly those in the Achilles tendon, heal poorly due to inherently poor blood circulation. The standard PRP technique in this type of injury would be a series of three injections over a period of 3-4 months. A study that specifies treating a patient with a chronic tendinopathy with a single PRP injection is setting up the patient unnecessarily for failure. Lastly, the study had a low number of subjects in it to make any clinically significant conclusions. Only 27 subjects were treated, each with a single PRP injection and there were 27 control subjects.

Regenerative medicine – Platelet rich plasma – has been FDA approved for medical use for 20 years. It has been used widely in dental, cardiac, orthopedic medicine to assist in and improve medical outcomes. The professional horse racing associations widely use PRP therapy to heal leg injuries in their million dollar race horses. Major league sports such as the NFL and MLB consider platelet rich plasma therapy an important treatment option to get their elite athletes “back into the game” in as short of time as possible. PRP healing typically takes six weeks, particularly when combined with rehabilitation. In conclusion, PRP is a highly effective medical treatment for ligament, tendon, muscle and other knee/shoulder injuries as well as lower back pain. Even patients with post-operative knee pain or shoulder pain can benefit from PRP therapy.  Outcomes are entirely dependent on the preparation and handling of the blood, equipment used and experience as well as skill of the treating physician. Additional information on PRP can be found at PRP Stops Pain. Excellent clinical study references can be found by clicking here.


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As a neurologist who sees many patients with neck, back and various joint pains, I practice an area of medicine known as neuro-orthopedics. As such, I treat patients for their pain without surgical intervention. Many patients with neck, back and joint pain (knee pain, shoulder pain, elbow pain, etc.) can be successfully treated without invasive surgery and the many risk that go along with this. With surgery there is also a prolonged recovery time and need for extensive rehabilitation. The area of medicine that applies to successfully treating patients without surgery or use of narcotic medications is known as regenerative medicine. In this field, platelet rich plasma is injected into the affected joint, tendon, ligament or soft tissue area that has pain and is failing to heal completely. Tendons attach muscle to bone and ligaments attach bones to bones. Platelet rich plasma (PRP) is the concentrated healing components of the blood. Only one percent of the blood contains the bioactive proteins and platelets that are involved in healing. Through a specialized process, we can take the patient’s own blood and concentrate the platelets and bioactive proteins up to 500%. This small amount of concentrated PRP is then injected into the joint or other body area, that needs regeneration, after local anesthetic is administered. The PRP graft is then activated with thrombin and the healing process begins. Using the patient’s own blood eliminates the risk of transmitting disease and prevents graft rejection. PRP also has the benefit of being antimicrobial, killing off bacteria thereby limiting the risk of infection. David Crane, MD published an excellent overview of platelet rich plasma.

Platelet rich plasma works by first being injected into the affected area and activated. The activated platelets attach themselves to the damaged tissue, whether that be tendons, ligaments, muscle or bone. The platelets release alpha granules and dense particles. The small packets contain powerful bioactive proteins that begin the healing process. The alpha granules contain clotting factors, growth factors, cytokines and adhesion molecules. These substances allow the PRP graft to attach to the damaged tissue and start recruiting other healing cells to migrate into the area. The dense particles contain proteins that allow the platelets to clump together, forming the structural matrix of the PRP graft.

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