Spine, Extremities

Question 1

Red Arrows show _____ sign.

This is an indication of _______.

Answer 1

Vacuum sign

Indicates DDD

Question 2

How would you know if this patient had canal stenosis?

Answer 2

1. Lateral Xray
2. Canal Distance from spinolaminar jct to George’s Line < 12 mm

Question 3

Name the red line

Answer 3

George’s Line

Question 4

Name the far left black line

Answer 4

Spinolaminar Junction

Question 5

Name of the sign (circled) & disease it is associated with

Answer 5

Gull Wing Sign = Erosive Osteoarthritis

Question 6

AKA for DISH

Answer 6

Forestier’s Disease

Question 7

DISH may cause canal stenosis if _____

Answer 7

the PLL becomes ossified (OPLL)

Question 8

3 Radiographic Hallmarks of DISH

Answer 8

1. Spndylophytes of at least 4 contiguous vert bodies
2. Relative preservation of disc heights
3. No Apophyseal, costotransverse, or SI jt ankylosis or erosions

Question 9

Name the Disease

Answer 9

Knife Clasp deformity at L5

& Spina Bifida Occulta

Question 10

Name the Disease

Answer 10

DISH

Question 11

Name the Disease

Answer 11

DISH

Question 12

Name the Disease

Answer 12

DISH

Question 13

Name the Disease

Answer 13

DISH

Question 14

Name the disease

Answer 14

Charcot’s foot

Question 15

Name the disease

Answer 15

Charcot’s knees

Question 16

A common DDX for Charcot’s of the spine might be ____

Answer 16

infection (aka = Pott’s Disease)

Question 17

Name the disease

Answer 17

Charcot’s shoulder

Question 18

Name the disease

Answer 18

Synovial Chondrometaplasia (joint mice)

Question 19

Name the disease.

Answer 19

Synovial osteochondromatosis

(aka = synovial chondrometaplasia)