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Test Your Knowledge 34 - 3/15/2010 Answers
1. Which stage of a boutonniere deformity is described: An established deformity that cannot be passively corrected.
a. stage 1
b. stage 2
c. stage 3
d. stage 3
2. After a soft tissue injury over the dorsum of the hand it is common to have extrinsic extensor tightness. T or F
a. true
b. false
3. The sagittal band is torn with traumatic dislocation fo the the extensor tendon most commonly in which finger?
a. index
b. middle
c. ring
d. small
4. Which sagittal band is torn more often.
a. radial
b. ulnar
c. equal for both
5. Which extensor tendon zone is injured most frequently?
a. 1
b. 2
c. 3
d. 4
e. 5
f. 6
6. The EDC is absent in the little finger is what % of cases?
a. 10
b. 30
c. 50
d. 80
7. How much of the flexor tendon should be involved for the surgeon to decide to repair it?
a. 10
b. 20
c. 30
d. 60
8. Fractures of the ulnar styloid may disrupt what structure?
a. TFCC
b. SL ligament
c. LT ligament
d. Interosseous membrane
9. Which procedure is most helpful for ulnocarpal impaction syndrome?
a. TFCC debridement
b. radial shortening
c. osteotomy of the ulna shaft
d. all of the above are equally helpful
10. When is ulnar variance more positive?
a. supination
b. pronation
c. power grip
d. a and c
e. b and c
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