A member asked:

Can i expect to have nerve damage to my ankle due to docors not diagnosing my ankle pain and swelling due to os trigonum for 17 months.

3 doctors weighed in across 2 answers
Dr. Bahman Omrani answered

Specializes in Pain Management

Os trigonum: Os trigonum is seldom symptomatic & seen in more than 10% of the population. Its a normal structure encountered in average people & professional athletes. Acquired form can result from non-union fractures. Conservative treatment can be effective in symptomatic patients with surgery being the last resort. Doubt permanent nerve damage & would re-consider diagnosis if that is the case.

Answered 3/16/2014

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Dr. Steven Sheskier answered

Specializes in Orthopedic Foot and Ankle Surgery

Not usually: Though the posterior tibial nerve is in the vicinity of the os trigonium (posterior ankle joint) swelling will not usually cause nerve damage. Swelling can bring out some tarsal tunnel symptoms if you were predisposed to them from an already tight tarsal tunnel. Os triennium is a extra bone that 5% of the population have and can become symptomatic. Mri'shelp see if it is inflamed.

Answered 9/28/2016

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