Tarsal tunnel

Changed by Owen Kang, 24 Nov 2016

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The tarsal tunnel is a fibro-osseous canal found in the medial aspect of the ankle.

Gross anatomy

Boundaries

roof: flexor retinaculum
floor: medial surfaces of the tibia, talus and calcaneus ^{1, 2}

From anterior to posterior:

tibialis posterior tendon
flexor digitorum longus tendon
posterior tibial neurovascular bundle
- posterior tibial artery and vein
- tibial nerve
flexor hallucis longus tendon

A mnemonic to remember the order is Tom, Dick and Very Nervous Harry.

The tarsal tunnel is divided by fibrous septae joining the retinaculum to calcaneum, forming four separate compartments - one for each of the tendons and one for the neurovascular bundle ^1-3.

Related pathology

tarsal tunnel syndrome

~~-<li>floor: medial surfaces of the <a href="/articles/talus">talus</a> and <a href="/articles/calcaneus">calcaneus</a> <sup>1, 2</sup>~~
+<li>floor: medial surfaces of the tibia, <a href="/articles/talus">talus</a> and <a href="/articles/calcaneus">calcaneus</a> <sup>1, 2</sup>
~~-<li>neurovascular bundle<ul>~~
+<li>posterior tibial neurovascular bundle<ul>