Anatomy of the Tarsal Tunnel

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What is the composition of the roof of the tarsal tunnel?

Synovial

Bony

Fibrous (correct)

Cartilaginous

Which of the following is NOT a structure that passes through the tarsal tunnel?

Anterior tibial artery

Peroneus brevis tendon (correct)

Flexor digitorum longus tendon

Posterior tibial nerve

What is the likely cause of gradual onset of tibial nerve entrapment in the tarsal tunnel?

Wearing high heels

Overpronation (correct)

Overuse of the ankle joint

Sudden trauma to the ankle

Which diagnostic test is used to assess tibial nerve entrapment in the tarsal tunnel?

Dorsiflexion Eversion Test Signup and view all the answers

What is a potential treatment for tibial nerve entrapment in the tarsal tunnel?

Orthotics and nerve gliding Signup and view all the answers

Which bony structure forms the posterior aspect of the medial malleolus, where the tibial nerve is prone to entrapment?

Tibia Signup and view all the answers

What is the result of the positive Dorsiflexion Eversion Test in relation to tibial nerve entrapment?

It compresses the posterior tibial nerve Signup and view all the answers

Which of the following tendons is NOT located within the tarsal tunnel?

Peroneus longus Signup and view all the answers

What is the relationship between the posterior tibial nerve and the medial and lateral plantar branches in relation to entrapment?

The medial and lateral plantar branches are involved in entrapment of the posterior tibial nerve Signup and view all the answers

What is the likelihood of a simultaneous positive result on the SLR and DF tests in relation to tibial nerve entrapment?

It is highly likely Signup and view all the answers

What is the primary role of the fibrous flexor retinaculum in the tarsal tunnel?

To reduce friction between the tendons and the bony floor Signup and view all the answers

Which of the following structures is most likely to be compressed in the tarsal tunnel, leading to gradual onset of entrapment?

Posterior tibial nerve Signup and view all the answers

What is the primary mechanism by which overpronation contributes to tibial nerve entrapment in the tarsal tunnel?

Increased pressure on the posterior tibial nerve due to altered foot biomechanics Signup and view all the answers

What is the significance of the medial and lateral plantar branches in relation to tibial nerve entrapment in the tarsal tunnel?

They may be involved in entrapment, but their involvement is less common Signup and view all the answers

Which of the following treatments is likely to address the underlying cause of tibial nerve entrapment in the tarsal tunnel?

Orthotics to reduce overpronation Signup and view all the answers

What is the primary mechanism by which the posterior tibial nerve becomes entrapped within the tarsal tunnel?

Overpronation causing the medial malleolus to compress the nerve Signup and view all the answers

Which of the following structures is most likely to be affected by compression of the posterior tibial nerve within the tarsal tunnel?

Medial and lateral plantar branches Signup and view all the answers

What is the primary component of the floor of the tarsal tunnel?

Tibia and talus bones Signup and view all the answers

What is the significance of the positive Dorsiflexion Eversion Test in relation to tibial nerve entrapment?

It is a provocative test for tibial nerve entrapment Signup and view all the answers

Which of the following treatments is likely to address the symptoms of tibial nerve entrapment in the tarsal tunnel?

Orthotics and nerve gliding exercises Signup and view all the answers