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Electrodiagnostics > LE Mononeuropathy > Flashcards

LE Mononeuropathy Flashcards

1
Q

Injury to which nerve can result in trendelenburg gait

A

Superior gluteal nerve - weakness of hip abduction and ER

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2
Q

Largest and longest branch of femoral nerve

A

Saphenous nerve

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3
Q

2 divisions of sciatic nerve and which is medial and lateral

A

Tibial (medial) and peroneal (lateral) nerve

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4
Q

What gait abnormality can be seen with obturator neuropathy

A

Circumducting gait

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5
Q

Nerve root of superior and inferior gluteal nerves

A

Superior - L4, L5, S1

Inferior - L5, S1, S2

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6
Q

What muscle is commonly affected in deep peroneal neuropathy

A

EDB

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7
Q

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

A

Short head of biceps femoris

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8
Q

What 6 muscles is innervated by obturator nerve

A

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

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9
Q

Relation of femoral n to femoral artery

A

Lateral

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10
Q

Branches of tibial nerve

A

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

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11
Q

What are the major posterior nerves of the lumbosacral plexus

A

Femoral nerve and common peroneal nerve

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12
Q

What nerve is commonly affected in diabetic amyotrophy

A

Femoral nerve

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13
Q

Muscles innervated by superficial peroneal nerve

A

Peroneus longus and brevis

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14
Q

Nerve root of tibial nerve

A

L4,5,S1,2,3

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15
Q

What does superior and inferior gluteal nerve innervate

A

Superior - gluteus medius, gluteus minimus, TFL

Inferior - gluteus maximus

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16
Q

Muscles innervated by deep peroneal nerve

A

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

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17
Q

Contents of tarsal tunnel

A

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

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18
Q

Most common cause of femoral nerve neuropathy

A

Surgery

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19
Q

What muscles does the femoral nerve pass through

A

Psoas

20
Q

Most common site of common peroneal nerve entrapment

A

Fibular head

21
Q

Nerve root of femoral nerve

A

L2, 3, 4

22
Q

What nerve is affected in anterior tarsal tunnel syndrome

A

Deep peroneal nerve

23
Q

5 Muscles innervated by tibial nerve above soleus

A

Plantaris, medial gastroc, lateral gastroc, soleus, popliteus

24
Q

Nerve roots for common peroneal nerve

A

L4,5,S1,2

25
Q

Muscles innervated by lateral plantar nerve

A

Adductor hallicus, quadratus plantae, interossei, abductor digiti minimi

26
Q

Site of nerve entrapment of saphenous nerve

A

Subsartorial (Hunter’s) canal.

27
Q

Etiology of diabetic amyotrophy

A

Microvasculitis affecting the vaso-nevorum

28
Q

What does piriformis syndrome affect

A

Peroneal portion of the sciatic nerve

29
Q

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

A

Stems from superficial peroneal nerve and innervate extensor digitorum brevis

30
Q

Nerve root of lateral femoral cutaneous nerve

A

L2 and L3

31
Q

Nerve root of sciatic nerve

A

L4,5,S1,2,3

32
Q

Nerve root of obturator nerve

A

L2,3,4

33
Q

Muscles innervated by medial plantar nerve

A

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

34
Q

What nerve is involved in meralgia paresthetica

A

Lateral femoral cutaneous

35
Q

Sensory distribution of saphenous nerve

A

Medial leg, medial malleolus, medial arch

36
Q

Where does sural nerve come from

A

Branches of tibial nerve and common peroneal nerve

37
Q

What are the major anterior nerves of the lumbosacral plexus

A

Obturator and tibial nerve

38
Q

Muscles innervated by sciatic nerve before it splits

A

Peroneal division - short head of biceps femoris

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

39
Q

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

A

Mononeuritis multiplex

40
Q

Sensory innervation of sural nerve

A

Lateral calf and foot

41
Q

What structures does the sciatic nerve go through

A

Greater sciatic foramen

42
Q

Muscles innervated by posterior tibial nerve

A

Tibialis posterior, flexor digitorum longus, flexor hallicus longus

43
Q

What 7 muscles does femoral nerve innervate

A

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

44
Q

Sx of Tarsal tunnel syndrome are reproduced by what motion

A

Ankle inversion

45
Q

What sensory problem do people with deep peroneal neuropathy commonly have

A

1st web space

Electrodiagnostics (20 decks)

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