AVN (AKA Osteonecrosis/ Osteochondrosis)

Question 1

Major cause of AVN

Answer 1

Trauma

Question 2

Is there any lab for AVN

Answer 2

No

Question 3

ALL AVN can lead to …

Answer 3

DJD

Question 4

Special test for AVN

Answer 4

Bone scan

MRI

Question 5

All AVN are self resolving but it takes…

Answer 5

8 months to a year

Question 6

Location of Preiser’s

Answer 6

Carpal Scaphoid

Question 7

Location of Scheurmann’s

Answer 7

Vertebral end plate epiphysis

Question 8

Location of Kohler’s

Answer 8

Tarsal Navicular

Question 9

Location of Keinboch’s

Answer 9

Carpal lunate

Question 10

Location of Server’s

Answer 10

Calcaneus

Question 11

Location of Bilount’s

Answer 11

Medial Tibial Condyle

Question 12

Location of Freiberg’s (Shawn’s/ Morton’s Neuroma)

Answer 12

Head of 2nd or 3rd metatarsal

Question 13

Location of osteochondritis dessicans

Answer 13

Articular Surface of the medial femoral condyle

Question 14

Location of Panners

Answer 14

Capitellum

Question 15

16-25 YO, athletes, knee locks out on extension

Answer 15

Osteochondritis Dessicans

Question 16

Osteochondritis Dessicans is associated with….sign

Answer 16

Wilson’s sign

Question 17

Osteochondritis Dessicans is best seen on what radiographic view?

Answer 17

Tunnel view

Question 18

Case history of rounding of shoulders
Increased kyphosis
Young patient with back pain

Answer 18

Schuermann’s Disease

Question 19

Schuermann’s Disease MC age

Answer 19

10-16

Question 20

Schuermann’s Disease radiographic sign

Answer 20

Slight loss of anterior body height of one or more vertebra (10-15%)
Multiple endplate irregularities or 3 or more continuous vertebra

Question 21

Schuermann’s Disease case management

Answer 21

Thoracolumbar brace (Milwaukee)
Strengthen erector muscles
Stretch pecs
Stop all activities

Question 22

Schuermann’s Disease can lead to

Answer 22

Permanent postural deformity

Early DJD