Musculoskeletal

Question 1

95% of disc herniations are at:

Answer 1

L5-S1 or L4-L5

Question 2

Three occupational associations for CTS:

Answer 2

force, repetition, awkward posture

Question 3

What is most common overuse injury of wrist?

Answer 3

DeQuervain’s tenosynovitis

Question 4

Biceps DTR:

Answer 4

C5, some C6

Question 5

Brachioradialis DTR:

Answer 5

C6

Question 6

Triceps DTR:

Answer 6

C7, C8

Question 7

__% of subjects w/o neck pain had disc bulge or herniations

Answer 7

19%

Question 8

__% of subjects w/o neck pain over 40 had bulge or herniations

Answer 8

28%

Question 9

What is a late sign of CTS?

Answer 9

motor weakness (median nerve is 90% sensory)

Question 10

What is a late EMG sign of CTS?

Answer 10

denervation of abductor pollicis brevis

Question 11

NCV is gold standard for CTS testing but has __ false negative rate?

Answer 11

5-8% false negative rate

Question 12

What is DDx for CTS?

Answer 12

pronator teres syndrome

Question 13

What is pronator teres syndrome?

Answer 13

entrapment of median nerve at forearm

Question 14

How to distinguish between PTS and CTS?

Answer 14

Tenderness at antecubital, pinch weakness, NCV findings proximal to wrist.

Question 15

What is cubital tunnel syndrome?

Answer 15

entrapment of ulnar nerve at elbow

Question 16

Clinical signs of cubital tunnel syndrome?

Answer 16

decreased sensation in medial forearm and 4th and 5th fingers, weakness in intrinsic muscles of hand, Tinel’s at elbow

Question 17

What is EMG finding of cubital tunnel syndrome?

Answer 17

denervation of abductor digiti quinti

Question 18

What is most common overuse injury of wrist?

Answer 18

DeQuervain’s tenosynovitis

Question 19

Test for DeQuervain’s?

Answer 19

Finkelstein’s test

Question 20

Which rotator cuff tendinopathy is most common?

Answer 20

supraspinatus

Question 21

What % of population has had neck pain?

Answer 21

9-33%

Question 22

C4 dermatome:

Answer 22

top of shoulders

Question 23

C5 dermatome:

Answer 23

lower shoulder, lateral upper arm

Question 24

C6 dermatome:

Answer 24

lateral forearm, thumb, index finger

Question 25

C7 dermatome:

Answer 25

neck to index, middle finger

Question 26

C8 dermatome:

Answer 26

neck to ring, small finger

Question 27

L5 nerve root dysfunction is associated with what findings?

Answer 27

lateral leg pain, weak EHL

Question 28

S1 nerve root dysfunction is associated with

Answer 28

posterior thigh pain, lateral leg and foot pain, weak ankle plantar flexion, decreased ankle jerk