Traumatic Fx Review

Question 1

comminuted fx

Answer 1

> 2 fragments

Question 2

alignment defined as

Answer 2

description of distal segment in relation to proximal

Question 3

greenstick fx

Answer 3

fx on side of tensile loading

angular displacement common

Question 4

torus fx

Answer 4

impaction fx on side of compressive loading

Question 5

plastic bowing

Answer 5

incomplete fx - plastic response to longitudinal stress

pediatric

Question 6

pediatric physeal fx type 1

Answer 6

growth plate only

S - slip

Question 7

pediatric physeal fx type 2

Answer 7

physis & metaphysis

A - above

Question 8

pediatric physeal fx type 3

Answer 8

physis & epiphysis

L - low

Question 9

pediatric physeal fx type 4

Answer 9

epiphysis, physis & metaphysis

T - through

Question 10

pediatric physeal fx type 5

Answer 10

crush injury of physis

R - ruin

Question 11

pediatric physeal fx type 6 (Rang’s)

Answer 11

involves perichondral ring or associated periosteum of physis

Question 12

pediatric physeal fx type 7 (Ogden’s)

Answer 12

osteochondral fx of epiphysis

Question 13

pediatric physeal fx type 8 (Ogden’s)

Answer 13

fx of metaphysis

Question 14

pediatric physeal fx type 9 (Ogden’s)

Answer 14

avulsion of periosteum

Question 15

what can Ogden fx disrupted

Answer 15

blood flow to physis

Question 16

goals of a fixation

Answer 16

avoid subsequent soft tissue injury

maintain bone length
maintain alignment

Question 17

timeline for bone healing

Answer 17

6-8 wk adults
4-6 wk child

Question 18

scaphoid bone healing and time immobilized

Answer 18

7.7 wks median time healing

6-12 wks immobilized

Question 19

clavicle bone healing and time immobilized

Answer 19

3.9 wk median time healing

4-6 wks immobilized

Question 20

life threatening complications for fx healing

Answer 20

hemorrhage
fat embolism
PE
gas gangrene
tetanus