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Figure A is a dissection of the medial aspect of the left ankle and foot. Which of the following nerves indicated in Figure A is most commonly implicated in nerve entrapment?
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A 40-year-old runner complains of heel pain for 4 months. He reports tenderness over the abductor hallucis origin with a positive Tinel's sign radiating to the lateral foot. The pain worsens with prolonged activity. What is the most likely diagnosis?
heel fat pad fat atrophy
compression of the first branch of the lateral plantar nerve (Baxter's nerve)
tarsal tunnel syndrome
Which nerve innervates the abductor digiti quinti and can be compressed as it travels under the fascia of the abductor hallucis muscle leading to symptoms of plantar heel pain?
First branch of the lateral plantar nerve
A competitive marathoner reports 6 months of pain over the lateral distal leg and dysesthesia over the dorsum of the foot. There is a tender fullness over the distal lateral fibula with a positive Tinel's sign. There is normal motor strength, but pain with passive plantar flexion and inversion of the ankle. The most appropriate surgical treatment is:
Repair muscle herniation and closure of the fascial defect
Fascial release and superficial peroneal neurolysis
Fascial release of all four compartments
Superficial peroneal neurectomy
A 24-year-old male suffered an inversion injury 6 months ago. Since then he has had persistent numbness and tingling across the dorsum of his foot that is worse with plantar flexion and inversion of foot. A release of the involved nerve, shown in Figure V, is performed. Which of the following most likely describes the cause of his symptoms?
Compression of the superficial peroneal nerve by fascial band proximal to lateral malleolus
Compression of the superficial peroneal nerve by the superior extensor retinaculum
Compression of the deep peroneal nerve by the inferior extensor retinaculum
Compression of the superficial peroneal nerve by a ganglion cyst
Compression of the sural nerve 2cm proximal to the tip of the fibula