LE Mononeuropathy

Question 1

Injury to which nerve can result in trendelenburg gait

Answer 1

Superior gluteal nerve - weakness of hip abduction and ER

Question 2

Largest and longest branch of femoral nerve

Answer 2

Saphenous nerve

Question 3

2 divisions of sciatic nerve and which is medial and lateral

Answer 3

Tibial (medial) and peroneal (lateral) nerve

Question 4

What gait abnormality can be seen with obturator neuropathy

Answer 4

Circumducting gait

Question 5

Nerve root of superior and inferior gluteal nerves

Answer 5

Superior - L4, L5, S1

Inferior - L5, S1, S2

Question 6

What muscle is commonly affected in deep peroneal neuropathy

Answer 6

EDB

Question 7

In common peroneal neuropathy, what muscle innervated by peroneal nerve is spared?

Answer 7

Short head of biceps femoris

Question 8

What 6 muscles is innervated by obturator nerve

Answer 8

Adductor longus, adductor magnus, adductor brevis, pectineus, obturator externus, gracilis

Question 9

Relation of femoral n to femoral artery

Answer 9

Lateral

Question 10

Branches of tibial nerve

Answer 10

Posterior tibial nerve –> medial plantar nerve, lateral planter nerve, calcaneal nerve

Question 11

What are the major posterior nerves of the lumbosacral plexus

Answer 11

Femoral nerve and common peroneal nerve

Question 12

What nerve is commonly affected in diabetic amyotrophy

Answer 12

Femoral nerve

Question 13

Muscles innervated by superficial peroneal nerve

Answer 13

Peroneus longus and brevis

Question 14

Nerve root of tibial nerve

Answer 14

L4,5,S1,2,3

Question 15

What does superior and inferior gluteal nerve innervate

Answer 15

Superior - gluteus medius, gluteus minimus, TFL

Inferior - gluteus maximus

Question 16

Muscles innervated by deep peroneal nerve

Answer 16

Extensor digitorum longus, extensor digitorum brevis, extensor hallicus longus, tibialis anterior, first dorsal interossei, peroneus tertius

Question 17

Contents of tarsal tunnel

Answer 17

Tibialis posterior, flexor digitorum longus, posterior tibial artery, posterior tibial vein, posterior tibial nerve, flexor hallicus longus

Question 18

Most common cause of femoral nerve neuropathy

Answer 18

Surgery

Question 19

What muscles does the femoral nerve pass through

Answer 19

Psoas

Question 20

Most common site of common peroneal nerve entrapment

Answer 20

Fibular head

Question 21

Nerve root of femoral nerve

Answer 21

L2, 3, 4

Question 22

What nerve is affected in anterior tarsal tunnel syndrome

Answer 22

Deep peroneal nerve

Question 23

5 Muscles innervated by tibial nerve above soleus

Answer 23

Plantaris, medial gastroc, lateral gastroc, soleus, popliteus

Question 24

Nerve roots for common peroneal nerve

Answer 24

L4,5,S1,2

Question 25

Muscles innervated by lateral plantar nerve

Answer 25

Adductor hallicus, quadratus plantae, interossei, abductor digiti minimi

Question 26

Site of nerve entrapment of saphenous nerve

Answer 26

Subsartorial (Hunter's) canal.

Question 27

Etiology of diabetic amyotrophy

Answer 27

Microvasculitis affecting the vaso-nevorum

Question 28

What does piriformis syndrome affect

Answer 28

Peroneal portion of the sciatic nerve

Question 29

Where does the accessory peroneal nerve branch stem from and what does it innervate

Answer 29

Stems from superficial peroneal nerve and innervate extensor digitorum brevis

Question 30

Nerve root of lateral femoral cutaneous nerve

Answer 30

L2 and L3

Question 31

Nerve root of sciatic nerve

Answer 31

L4,5,S1,2,3

Question 32

Nerve root of obturator nerve

Answer 32

L2,3,4

Question 33

Muscles innervated by medial plantar nerve

Answer 33

Abductor hallicus, flexor hallicus brevis, flexor digitorum brevis, lumbricals

Question 34

What nerve is involved in meralgia paresthetica

Answer 34

Lateral femoral cutaneous

Question 35

Sensory distribution of saphenous nerve

Answer 35

Medial leg, medial malleolus, medial arch

Question 36

Where does sural nerve come from

Answer 36

Branches of tibial nerve and common peroneal nerve

Question 37

What are the major anterior nerves of the lumbosacral plexus

Answer 37

Obturator and tibial nerve

Question 38

Muscles innervated by sciatic nerve before it splits

Answer 38

Peroneal division - short head of biceps femoris | Tibial division - long head of biceps femoris, semimembranosus, semitendinosus, adductor magnus

Question 39

Multifocal peripheral neuropathy with damage occurring in 2 or more different nerve areas

Answer 39

Mononeuritis multiplex

Question 40

Sensory innervation of sural nerve

Answer 40

Lateral calf and foot

Question 41

What structures does the sciatic nerve go through

Answer 41

Greater sciatic foramen

Question 42

Muscles innervated by posterior tibial nerve

Answer 42

Tibialis posterior, flexor digitorum longus, flexor hallicus longus

Question 43

What 7 muscles does femoral nerve innervate

Answer 43

Pectineus, sartorius, iliacus, vastus lateralis, vastus medialis, vastus intermedius, rectus femoris

Question 44

Sx of Tarsal tunnel syndrome are reproduced by what motion

Answer 44

Ankle inversion

Question 45

What sensory problem do people with deep peroneal neuropathy commonly have

Answer 45

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