Tibial Nerve Flashcards

1
Q

Roots

A

L4-S3

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2
Q

Motor functions

A
Posterior compartment of the leg 
Popliteus 
Flexor hallucis longus 
Flexor digitorum longus 
Tibialis posterior 
Plantaris 
Soleus 
Gastrocnemius
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3
Q

Sensory functions

A

Skin on the posterolateral side of the leg (combines with common fibular to form sural)
Lateral side of the foot
Sole of the foot

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4
Q

Tarsal tunnel syndrome

A

Tibial nerve compression within tarsal tunnel
Osteoarthritis
Rheumatoid arthritis
Post-trauma ankle deformities
Patients complain of paraesthesia in ankle and sole of foot (can radiate up the leg slightly)
Aggravated by exercise, relieved by rest
Treatment - anti-inflammatory drugs or changes in footwear
Flexor retinaculum can also be cut surgically to release pressure

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5
Q

Damage to tibial nerve

A

Rare, often result of direct trauma, entrapment through a narrow space or compression over a long period
Results in loss of plantarflexion, loss of flexion of toes, weakened inversion (tibias anterior can still invert)

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