lower limb nerve lesions

Question 1

Motor supply - knee extension, thigh flexion?

Answer 1

Femoral nerve

Question 2

Sensory supply - anterior and medial aspect of thigh, lower leg

Answer 2

Femoral nerve

Question 3

Typical mechanism of femoral nerve injury?

Answer 3

Hip and pelvic fractures
Stab/ gunshot wounds

Question 4

Obturator nerve - motor supply?

Answer 4

Thigh adduction

Question 5

Sensory supply to medial thigh?

Answer 5

Obturator nerve

Question 6

Typical mechanism of obturator nerve injury?

Answer 6

Anterior hip dislocation

Question 7

Lateral cutaneous nerve of the thigh - motor supply?

Answer 7

none

Question 8

Lateral cutaneous nerve to thigh provides sensory supply to?

Answer 8

Lateral and posterior surfaces of the thigh

Question 9

Mechanism of injury - lateral cutaneous nerve of thigh injury?

Answer 9

compression of the nerve near ASIS - neuralgia paraesthetica

Question 10

Tibial nerve = motor supply to?

Answer 10

Foot plantar flexion and inversion

Question 11

Tibial nerve provides sensory supply to?

Answer 11

Sole of foot

Question 12

Motor supply for foot dorsiflexion, eversion and extensor hallucinations longus?

Answer 12

Common peroneal nerve

Question 13

Sensory supply to dorm of the foot and lower lateral part of leg?

Answer 13

Common peroneal nerve

Question 14

Injury to common peroneal nerve?

Answer 14

Neck of fibula
Tightly applied lower limb plaster cast
Injury causes foot drop

Question 15

Hip abduction - nerve?

Answer 15

Superior gluteal nerve

Question 16

Sensory function of superior gluteal nerve

Answer 16

None

Question 17

Injury - superior gluteal nerve?

Answer 17

Misplaced IM injection
Hip surgery
Pelvic fracture
Posterior hip dislocation

Question 18

What does superior gluteal nerve injury result in?

Answer 18

Positive trendelenburg sign

Question 19

What does inferior gluteal nerve supply motor innervation to?

Answer 19

Hip extension and lateral rotation

Question 20

When is inferior gluteal nerve injured?

Answer 20

In association with sciatic nerve

Question 21

What does inferior gluteal nerve injury cause?

Answer 21

Difficulty rising from seated position
Can’t jump
Can’t climb stairs