Musculoskeletal System

Question 1

Which injury causes a child to keep arm extended and pronated, will not supinate

Answer 1

Nursemaid elbow (subluxation of the radial head caused by pull on the arm)

Question 2

What condition is a central motor dysfunction affecting the cerebrum, resulting in spasticity, balance and gait problems, scissor walking, contractures, and abnormal reflexes?

Answer 2

Cerebral palsy

Question 3

What condition causes progressive skeletal muscle weakness and atrophy and has an XL inherited form?

Answer 3

Muscular dystrophy

Question 4

Which type of muscular dystrophy is fatal by the late teens: Becker or Duchenne?

Answer 4

Duchenne

“Becker is better”

Question 5

Scoliosis is defined by curvature of the spine > ___ degrees?

Answer 5

10

Question 6

What condition is a fracture through the growth plate with slippage of the epiphysis, occurs in mainly obese teenage males between ages 11-14?

Answer 6

Slipped capital femoral epiphysis

Question 7

What’s the tx for slipped capital femoral epiphysis?

Answer 7

Urgent orthopedic surgery

Question 8

What’s an apophysitis of tibial tubercle, causing pain and irritation of patellar ligament and a painful lump over the anterior/superior tibia, often in boys 9-14?

Answer 8

Osgood-Schlatter’s

Question 9

Does Osgood-Schlatter’s usually require a brace/cast?

Answer 9

No, only in severe cases

Question 10

Which condition is an idiopathic avascular necrosis caused by disruption in blood flow to femoral head; usually presents with pain on internal rotation in children <6?

Answer 10

Legg-Calve-Perthes

Question 11

Which ligament is usually involved in ankle sprain?

Answer 11

Anterior talofibular

Question 12

Which condition causes pain over the biceps groove and a positive Speed’s test?

Answer 12

Biceps tendinitis

Question 13

What condition causes painful inflammation of the synovial sheath surrounding the abductor pollicis longus and extensor pollicis previs at the styloid process of the radius, and presents with a positive finkelstein test?

Answer 13

De Quervain tenosynovitis

Question 14

What causes pain over the lateral or medial epicondyle of the elbow?

Answer 14

Lateral (tennis elbow)

Medial (golfer’s elbow)

Question 15

Are gout crystals negatively birefringent?

Answer 15

Yes

Question 16

What’s the treatment for gout?

Answer 16

Colchicine during attack; Allopurinol for prophylaxis

Question 17

What’s the target uric acid level in serum for gout patients?

Answer 17

<6

Question 18

What’s an inflammatory arthritis caused by calcium pyrophosphate crystals and can cause a painful, warm, swollen joint *usually knee).

Answer 18

Pseudogout

Question 19

How many patients with psoriatic arthritis do not have a history of skin arthritis (but they have to have other findings like nail lesions, dactylitis, etc)?

Answer 19

30%

Question 20

What causes muscle pain, weakness, swelling, and has elevated CPK and ESR?

Answer 20

Myositis

Question 21

RA presents in which two joints of the hand?

Answer 21

MTP, DIP, and PIP

Question 22

What’s the drug of choice for RA?

Answer 22

MTX

Question 23

What type of fracture is from a FOOSH?

Answer 23

Colles (distal radius/ulna)

Question 24

What condition of the elderly presents with pain and stiffness of proximal muscles of neck, shoulders, hips, and has a very high ESR?

Answer 24

Polymyalgia rheumatica

Question 25

Which joints of the hand are affected by OA?

Answer 25

PIP & DIP