• Gregor Antoniadis and Konrad Scheglmann.
• Dtsch Arztebl Int. 2008 Nov 1; 105 (45): 776-81.

BackgroundPosterior tarsal tunnel syndrome is an uncommon clinical entity which is sometimes misdiagnosed in patients with pain of the retromalleolar region and the plantar aspect of the foot. Surgical intervention is recommended for correctly diagnosed posterior tarsal tunnel syndrome.MethodsSelective literature review.ResultsSurgical treatment is indicated in the presence of dysesthesias refractory to conservative treatment or of neurological deficits. If a neural tumor or tarsal tunnel ganglion is suspected, diagnostic imaging (MRI, neurosonography) should precede surgery. Division of the flexor retinaculum (ligamentum laciniatum) in the tarsal tunnel must always include distal decompression of the end branches of the tibial nerve posterior to the fascia of the abductor hallucis muscle. Only extensive exposure of the nerve guarantees adequate release.ConclusionAccurate diagnosis requires the evaluation of relevant clinical, neurological, and neurophysiological findings along with the careful consideration of other possible diagnoses. High success rates of 44% to 91% are reported after operative treatment. The results are better in idiopathic than in posttraumatic cases. If surgery fails, re-operation is indicated only in patients with inadequate release.

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