HIGH YIELD 1

Question 1

this is not inherited, acute onset, decreased arch height with rocker bottom appearance

Answer 1

charcot neuropathy

Question 2

inherited, slowly progressive, weakening peripheral muscles, children/adolescents, increased arch height, hammertoe contractures

Answer 2

charcot marie tooth

Question 3

what can cause neuropathy?

Answer 3

syphilis

leprosy

Question 4

RF for charcot?

Answer 4

h/o
duration
s/s

Question 5

what is a diagnostic problem of charcot?

Answer 5

resemblance to osteomyelitis

• local inflammation
• delayed or missed diagnosis in 25% of cases

Question 6

volkman/virchow responsible for this german theory of charcot?

Answer 6

neurotraumatic theory

Question 7

jean martin charcot was responsible for this french theory of charcot?

Answer 7

neurovascular theory

Question 8

main focus of the french neurovascular theory?

Answer 8

disregulation of arterial wall smooth muscle tone leads to increased blood flow to bone because of poor vasoregulation

Question 9

main focus of the french neurotraumatic theory?

Answer 9

multiple traumas + joint instability/overload = deterioration of joint

Question 10

development of charcot focuses on what aspects of neuropathy?

Answer 10

sensory/motor neuropathy and autonomic neuropathy

Question 11

main causes of charcot?

Answer 11

unknown
repetitive minor trauma
surgery
immunosuppresion 
metabolic insufficiencies

Question 12

main cause of charcot?

Answer 12

unknown causes (74%)
trauma from repetitive stress (22-50%)
surgery (4%)

Question 13

affect of trauma on non-DM charcot patient?

Answer 13

painful, stop WB, inflammation, decreases

Question 14

affect of trauma on DM neuropathic patient patient?

Answer 14

nonpainful, lack of immobilization potentiates inflammatory processes

Question 15

pro inflammatory and anti inflammatory cytokines?

Answer 15

TNFa to RANKL, IL-1B, IL-6

IL-4, IL-10

Question 16

what does charcot require?

Answer 16

significant neuropathy

peripheral blood flow

Question 17

what are the charcot classificaiton systems?

Answer 17

eichenholz-progression
sanders and frykberg-location
brodsky-location
schon-location

Question 18

eichenholz classification stages?

Answer 18

4 of them

stage 1: development (break down)
stage 2: coalescence (repairing)
stage 3: reconstruction (ankyloses)
stage 0: prodromal (looking normal)

Question 19

Sanders and Frykberg classification?

Answer 19

1=forefoot, 3%
2=lisfrancs joint, 48%
3=choparts joint, 34%
4=STJ/AJ, 13%
5=Calcaneus, 2%

Question 20

Brodsky classification?

Answer 20

1=lisfranc/midfoot
2=STJ/TN/CC
3a=AJ
3b=Calcaneus

Question 21

Schon classification?

Answer 21

Lisfranc
Naviculocuneiform
Peri-navicular
Transverse tarsal