Session 10 - Nerve injuries of the leg Flashcards Preview

Semester 2 - MSK > Session 10 - Nerve injuries of the leg > Flashcards

Flashcards in Session 10 - Nerve injuries of the leg Deck (8)
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1
Q

How can the tibial nerve be damaged?

A

Posterior dislocation of the knee joint

Laceration

2
Q

What motor deficits are present after damage to tibial nerve?

A

Loss of toe flexion
Loss of plantarflexion due to paralysis of posterior leg muscles
Loss of sensation on sole of foot

3
Q

Why is the fibular nerve the most commonly damaged nerve in the leg?

A

Winds subcutaneously around the neck of the fibular

May be stretched in fibular fracture or posterior knee dislocaiton

4
Q

What motor deficits occur in damage to fibular nerve?

A

Foot drop due to loss of dorsiflexors of the anterior leg

5
Q

What are the three gaits used to make up for foot drop?

A

Waddling gait
Swing out gait
High steppage gait

6
Q

How can the deep fibular nerve become entrapped?

A

Excessive use of muscles in anterior compartment

Causes pain

7
Q

What can damage the superficial fibular nerve?

A

Chronic ankle sprains

8
Q

What does the calcaneal tendon reflex test?

A

S1 and S2 nerve roots

Useful in sciatica, as S1 may be compressed in L5/S1 hernia of the intervertebral disc