Have you looked into tarsal tunnel? It could possibly be related to the spur. I doubt it has anything to do with ITP treatments.
Neuropathy, or nerve damage, affects more than 20 million Americans, according to the Neuropathy Association. Neuropathy is not a specific disease but a combination of conditions that damages the nerves carrying signals between the brain and the muscles, skin and internal organs. According to Podiatry Today, entrapment neuropathy of the the tarsal tunnel, located in the heel, is a painful condition that can be challenging to diagnose. This is because it often occurs in conjunction with other conditions, such as a heel spur or plantar fasciitis, inflammation of heel tissue.
www.ehow.com/facts_5914043_difference-between-heel-spur-neuropathy_.html Causes
Certain circumstances can cause tarsal tunnel syndrome. Individuals that have flat feet are more at risk for developing this condition because their heels tilt outward, creating strain and compression on the nerve. In addition, there are times when a large, abnormal structure could occupy the space and cause pressure. Examples include varicose veins, ganglion cyst, swollen tendon, and arthritic bone spur. Ankle injuries could also cause this problem because of the inflammation they create near the tunnel. Lastly, diseases that cause swelling like diabetes or arthritis can cause this problem.
Symptoms
In addition to heel pain and numbness, there are other symptoms to be aware of in terms of tarsal tunnel syndrome. In addition to numbness, patients often experience tingling, burning, and sensations that are similar to an electric shock. Also many describe pain to feel like "shooting pain".
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