Radiculopathy Flashcards

1
Q

NCS findings of radiculopathy

A

SNAPs and CMAPs are normal.

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2
Q

Classically, what would needle emg show for radiculopathy

A

Fibs or PSWs in 2 different muscles innervated by 2 different peripheral nerves originating from same nerve root

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3
Q

C5, 6, 7, 8, T1, L4, 5, S1 reflexes

A

C5 - Biceps; C6 - brachioradialis; C7- triceps; L4-knee; L5 - hamstring; S1 - achilles

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4
Q

Innervation of pectineus

A

Femoral nerve and obturator nerve

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5
Q

Innervation of lumbricals

A

1st and 2nd = Median nerve

3rd and 4th = ulnar nerve

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6
Q

Innervation of adductor magnus

A

Tibial portion of sciatic nerve and obturator nerve

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7
Q

How much time after injury does radiculopathy show abnormal spontaneous activity on emg

A

1 week

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8
Q

Other causes of radiculopathy

A

Herpes zoster
Inflammation (TB, Lyme, syphilis, HIV, etc)
Metastasis
Arachnoiditis
Diabetes
Abscess
Mass (meningioma, leukemia, lipoma, hematoma, etc)

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9
Q

Innervation of biceps femoris

A

Long head = Tibial portion of sciatic nerve

Short head = Peroneal portion of sciatic nerve

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10
Q

Innervation of Flexor pollicis brevis

A

Median nerve and ulnar nerve

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11
Q

2 most common causes of radiculopathy

A

HNP and spinal stenosis

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12
Q

Innervation of pectoralis major

A

Medial and lateral pectoral nerve

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13
Q

Innervation of flexor digitorum profundus

A

Median nerve (AIN) and ulnar nerve

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14
Q

How long after injury does radiculopathy show reinnervation

A

5-6 weeks

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15
Q

The optimal number of muscles to screen in needle emg for lumbar or cervical radiculopathy is

A

6

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16
Q

Innervation of brachialis

A

Radial and musculocutaneous nerve