A 55-year-old woman with long-standing pes planus presents with burning pain and numbness on the plantar foot surface worsening after prolonged standing. Vital signs: BP 128/82, HR 82, RR 16, temp 37°C, SpO2 98%. Physical examination reveals positive Tinel sign posterior to the medial malleolus. Nerve conduction studies show slowed conduction velocity in the distal tibial nerve. No sensory loss in the dorsum of foot is noted. Compression of which nerve is most likely responsible?
- A)Posterior tibial nerveGABARITO
- B)Common fibular nerve
- C)Superficial fibular nerve
- D)Deep fibular nerve
- E)Sural nerve
Explicação
Tarsal tunnel syndrome involves compression of the posterior tibial nerve deep to the flexor retinaculum behind the medial malleolus. This causes plantar paresthesias and intrinsic foot symptoms rather than dorsum of foot numbness. Ver explicação completa e trilha adaptativa →