Musculoskeletal

Question 1

Shoulder abduction

Answer 1

Supraspinatus (to 30 degrees)

Deltoid

Question 2

External rotation of shoulder

Answer 2

Infraspinatus, teres minor (comb hair)

Question 3

Internal rotation of shoulder

Answer 3

Subscapularis (unhook bra)

Question 4

Deltoid innervation

Answer 4

Axillary nerve (C5)

Question 5

Supraspinatus innervation

Answer 5

Suprascapular nerve (C5)
Greater tubercle

Question 6

Infraspinatus innervation

Answer 6

Suprascapular nerve (C5)
Greater tubercle

Question 7

Teres minor innervation

Answer 7

Axillary nerve (C5)
Greater tuburcle

Question 8

Subscapular innervation

Answer 8

Upper and lower subscapular nerves (C5)

Lesser tubercle

Question 9

Elbow flexion

Answer 9

Biceps brachii

C5/6= musculocutaneous

Question 10

Supination of arm

Answer 10

Biceps brachii

C6= musculocutaneous

Question 11

Elbow extension

Answer 11

Triceps

C7= radial nerve

Question 12

Finger flexion (make a fist)

Answer 12

C8= median and ulnar

Question 13

Finger abduction

Answer 13

T1= ulnar nerve

Question 14

Knee extension

Answer 14

Quadriceps muscle
Femoral Nerve-L4 root
To -5 degrees
Note patellar movement

Question 15

Knee flexion

Answer 15

Four flexors including hamstrings
Sciatic nerve-L5, S1
To 130 degrees

Question 16

Valgus stress test

Answer 16

Valgus= Knock-kneed
Test= apply pressure to lateral side of knee
- Pain and/or laxity at medial joint line= MCL sprain
- Pain at lateral joint line= Lateral meniscus mischief

Question 17

Varus stress test

Answer 17

Varus= bow legged
Test= apply pressure to medial side of knee
- Pain and/or laxity at lateral joint line= LCL sprain
- Pain at lateral joint line= Medial meniscus mischief

Question 18

Great toe extension and flexion

Answer 18

Extension= Deep peroneal nerve
- Sensation to top of foot

Flexion= Tibial nerve
- sensation to bottom of foot

Question 19

Lachman’s maneuver

Answer 19

To assess for ACL sprain

• Knee stabilized at 20 degrees
• Examiner has fingers on medial and lateral joint lines
• Examiner pulls tibia anteriorly and notes laxity
• Sensitivity for isolated anterior cruciate tear-75%
• • Do not perform in an unstable knee!

Question 20

Anterior drawer maneuver

Answer 20

To assess for ACL sprain

• Knee stabilized at 90 degrees
• Examiner has fingers on medial and lateral joint lines
• Examiner pulls tibia anteriorly and notes laxity
• Sensitivity for isolated anterior cruciate tear-40%
• Do not perform if knee is grossly unstable!!

Question 21

Auenbrugger’s maneuver

Answer 21

A variant of auscultatory percussion

The examiner places stethoscope over AC joint and taps over the olecranon

Diminished sound indicates discontiguous structures:

• fracture or
• dislocation

Question 22

Yergason’s maneuver

Answer 22

• Patient in neutral handshake position
• Examiner inspects anterior aspect of shoulder
• Patient instructed to supinate forearm and flex elbow against resistance
• Pain at Bicipital groove increases likelihood of bicipital tendonitis

Question 23

Medial epicondylitis

Answer 23

Bowler, rock-climber

- Pain with active flexion and pronation; passive extension

Question 24

Median nerve entrapment

Answer 24

Pronator teres entraps nerve

• Positive Tinel’s test over pronator site
• Weakness with “OK” sign

Question 25

Cubital tunnel syndrome

Answer 25

Tinel’s over cubital tunnel site, weakness to hand intrinsics

Ulnar nerve entrapment
- Pain and tingling in pinky