MSK - Infection

Question 1

Def felon

Answer 1

Infection of the terminal finger pulp

Question 2

Human bite infectious agent

Answer 2

S. Aureus and Strep

Question 3

Animal bite infectious agent

Answer 3

Pastirella Multicoides

Question 4

MC infection in kids <5 YO

Answer 4

H. influenza

Question 5

MC location for neonate infection

Answer 5

Hip

Question 6

MC cause of cellulities

Answer 6

Strep

Question 7

90% of pyogenic infections are from

Answer 7

S. Aureus

Question 8

MC site of chronic granulomatous dz

Answer 8

Small bones of hands/feet

Question 9

Def SAPHO

Answer 9

Synovities, Acne, Pustulosis, Hyperostosis, osteitis

Question 10

Def Grisel syndrome

Answer 10

Non-traumatic subluxation of C1/C2 d/t adjacent inflammation

Question 11

Early site of axial infection in an adult

Answer 11

subchondral bones of vertebral body

Question 12

Waterhouse-Friderichsen syndome is

Answer 12

Fulminant meningococcal infection

Question 13

Location of gonococcal articular disease

Answer 13

Multiple location, MC at Knee>ankles>Wrist>Shoulder

Question 14

Gram Negative bacteria producing emphysematous septic arthritis

Answer 14

Klebsiella

Question 15

Occupation of Brucellosis infection

Answer 15

Farmer or meat handler

Question 16

Type of ankylosis in TB

Answer 16

Fibrous

Question 17

Hansen disease AKA

Answer 17

Leprosy

Question 18

Wimberger Sign is

Answer 18

erosion of medial surface of proximal tibial shaft in congenital syphilis

Question 19

Slutton joints are

Answer 19

bilateral painless joint effusion in congenital syphilis

Question 20

MC site for lyme disease

Answer 20

Knee>shoulder>elbow

Question 21

MC systemic fungal infection in US

Answer 21

Histoplasmosis Capsulata

Question 22

MC location of Variola

Answer 22

Elbow

Question 23

periostitis with skin lesions in patients with AIDS

Answer 23

Bacillary angiomatosis

Question 24

MC cause of chronic lymphadenopathy

Answer 24

Cat-Scratch disease (Rickettsial infection)

Question 25

MC location of cat-scratch disease is

Answer 25

Epitrochelear lymph nodes are more specific, but bigger in axilla

Question 26

MC location of talar AVN following Fx

Answer 26

the body

Question 27

Malignant degeneration of an AVN is to...

Answer 27

Fibrosarcoma or MFH

Question 28

AVN of Medial femoral condyle AKA

Answer 28

Ahlback disease

Question 29

AVN of distal tibia AKA

Answer 29

Liffert-Arkin disease

Question 30

AVN of 5th MT base is AKA

Answer 30

Iselin disease

Question 31

AVN of MC heads is AKA

Answer 31

Dietrich disease

Question 32

How long after Dysbaric osteonecrosis (Caisson) is onset

Answer 32

6-12 months

Question 33

Femoral head AVN location is

Answer 33

anterosuperior

Question 34

RAD exposure to temporarily arrest physis

Answer 34

300-400 RADs

Question 35

RAD exposure to permanently arrest physis

Answer 35

1800-2600 RADs

Question 36

MC radiation induced malignant sarcoma

Answer 36

Osteosarcoma

Question 37

MC radiation induced benign tumor

Answer 37

Osteochondroma

Question 38

Periosteal response in congenital syphilis vs Rubella

Answer 38

Yes (syphilis) and no (rubella)

Question 39

Putti's triad

Answer 39

Superolateral femoral epi displacement, increased acetabular angle and small capital femoral epiphysis

Question 40

What is the Sagging rope sign

Answer 40

Seen in LCP, curvilinear line at base of femoral neck

Question 41

Catterall classification grades what

Answer 41

Legg-Calve-Perthes

Question 42

How often is Blounts dz bilateral

Answer 42

60%

Question 43

What stage of Blount Dz is irrepairable

Answer 43

Stages 5+