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02/21/2015 David Secord, DPM
Prolotherapy for Plantar Fasciitis (Richard Benjamin, DPM)
Prolotherapy is being employed here and with some interesting agents (although not unknown agents). A number of agents used in the past for prolotherapy include extracts from several plants, the least unfamiliar being psyllium seed extract or Sylnasol, a product no longer available, and an extract from fish oil, still available in the pharmacopeia - sodium morrhuate.
The chief proliferant agents as judged by the frequency of usage are, however: 1. Glucose, 2. Glycerin and 3. Phenol. They are usually used in the following combination: phenol 1.25% glucose 12.5% glycerin 12.5% made up with 0.5% of lidocaine for local analgesia in water. (This preparation is also called P25G or P2G).
Klein [1] and Banks [2] have classified the injectable proliferating solutions that initiate the wound healing cascade into: 1) Irritants, which cause a direct chemical tissue injury, which attract granulocytes. Phenol, quinine and tannic acid are agents in this category, 2) Osmotic shock agents, which cause bursting of cell membranes leading to local tissue damage. Hyperosmolar dextrose (12.5 to 15% maximum) and glycerin are examples of the most commonly used agents in this category, 3) Chemotactic agents, which activate the inflammatory cascade. Sodium morrhuate is a prototype of this group. These compounds are the direct biosynthetic precursors of the mediators of inflammation, i.e., prostaglandins, leukotrienes, and thromboxanes, 4) Particulates, such as pumice flour, which are small particles on the order of 1 micron, which lead to longer-lasting irritation and the attraction of macrophages to the site. The modern use of sclerotherapy hails to the herniologists of the era which antedated antiseptic surgery. In 1837 Valpeau of Paris described the use of scar formation in hernias for their repair. The genealogy of herniology, and later the management of hydroceles and a variety of vein sclerosis techniques, was reviewed extensively earlier this century by Yeomans [3] and the tradition of vein sclerosis persists into contemporary medical times.
Earl Gedney, an osteopath from Philadelphia familiar with the sclerosing techniques of herniologists and venologists, was the first to introduce injection techniques for ligaments in 1937. [4] Gedney injected a hypermobile SIJ first with salutary results. The term sclerotherapy continued to be used for about two decades until the mid-1950s when the great organizer of prolotherapy, George Hackett, MD, acquired the skills of injection techniques from the osteopathic profession, evaluated its benefit in an initial series of studies, and published a number of articles about his experiences.
The idea of sclerotherapy or prolotherapy is tightening of a capsule or ligamentous structure via initiation of an inflammatory cascade and the formation of scar tissue and tightening of the structure. How this would apply in the treatment of plantar fascial pain or fasciosis is beyond me. 1 Klein 1995 The theory and practice of prolotherapy, 12th Annual AAOM Meeting PalmSprings, California. 2 Banks A 1991 A rationale for prolotherapy. Journal of Orthopaedic medicine 13:3 199 54-59. 3 Wollf J 1870 Die innere Architektur der Knochen. Arch Anat Phys 50. 4 Gedney EH 1937 Hypermobile joint. Osteopathic Profession 4:30-31.
David Secord, DPM, Corpus Christi, TX
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02/23/2015 Robert Kornfeld, DPM
Prolotherapy for Plantar Fasciitis (Richard Benjamin, DPM)
I have been using prolotherapy for over 15 years with great success. But it behooves every practitioner to understand that you can NEVER evaluate any therapy on its own as the only statistical barometer of efficacy. Realize that the indication for prolotherapy is to stimulate connective tissue healing in CHRONIC conditions.
This is the MOST important information because it tells you that you already have a patient whose immune system is struggling to heal. So before you make a diagnosis and fill your syringe as the "answer" to the problem, the reasons why this patient's immune system was not up to the task of healing MUST be identified. Once these mechanisms have been identified and addressed, then you can begin using a therapy such as prolotherapy. Its design is to stimulate the repair process, but will not work in patients who continue to have unaddressed immune burdens.
This is where statistical analysis fails to reveal its true value. If all we do is take these chronic pain patients and begin injecting proliferants, it is nothing more than hit or miss. This skews the statistics toward failure. As a profession specializing in foot and ankle pathology, we need to remember that we are not treating a foot or ankle problem, we are treating patients with foot or ankle problems. Each presents with their own unique genetics, epigenetics and physiology. The future of any and all successfully implemented protocols MUST include a complete assessment of WHY this patient is presenting with this condition.
So, when treatments such as prolotherapy are administered on a patient-specific basis with an understanding of that patient's unique immune challenges, the statistics will reveal a powerful and potent therapy that in my opinion is largely misunderstood and misused.
Robert Kornfeld, DPM, Port Washington, NY
02/21/2015 David T. Weiss, DPM
Prolotherapy for Plantar Fasciitis (Richard Benjamin, DPM)
I feel compelled to comment on the inquiry regarding prolotherapy. This treatment has been helpful for me in treating many muskuloskeletal problems that we see as podiatrists. Simply put, prolotherapy counts on the body’s own ability to heal itself. I spent a lot of time with a physiatrist (MD) who helped me learn these techniques. My father was a chiropractor, and I have always kept an open mind to “alternative health techniques.”
There are many types of injections that can be used to trigger a healing response in tissue. Common substances include sodium morrhuate, 50% dextrose, and more popular, PRP (platelet rich plasma). I have been performing Topaz radiofrequency ablation for over 15 years, and have experienced similar good results.
Radiofrequency ablation is a form or prolotherapy. These “non-surgical” techniques for recalcitrant muskoloskeletal pain certainly are an intelligent way to help our patients. They don’t work for everyone, but when they do, it makes complete sense - especially when one is quick to jump to irreversibly change the anatomy in one of our patients.
We are seeing cases of plantar fascioses, Achilles tendinosis, TPT and peroneal tendon enthesiopathies, and mild plantar plate pathologies responding to prolotherapy. The treatment is not intended for an acute inflammation, but for the more stubborn chronic condition (fasciosis).
The key to success is understanding when to use the injection, and the type of patient that will respond. We get the best results on younger, more active healthy patients, who are non-smokers. Remember, we are relying on the patient’s own collagen to repair itself, and with the help of chemical mediators of inflammation, stop pain.
We get worse outcomes in those patients who are smokers, diabetics, and obese.
There are many prolotherapy resources on the Internet, and the research on this technique is getting more plentiful and popular. Double-blind studies have been done, and they are encouraging.
David T. Weiss, DPM, Richmond, VA
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