Fractures

Question 1

Impaction is

Answer 1

= compression with axial load
Depression & compression

Question 2

Avulsion

Answer 2

= tensile loading of fragment & main body of bone
Muscle contraction or passive loading

Question 3

Greenstick fracture

Answer 3

• Fracture on side of TENSILE loading
• Angular displacement common

Question 4

Torus fracture

Answer 4

• Impaction fracture on side of compressive loading

Question 5

Plastic bowing fracture

Answer 5

• Longitudinal compression forces exerted, capacity for elastic recoil exceeded
• Likely a component of all pediatric fractures

Question 6

Physeal fractures - type 1

Answer 6

Growth plate only
Slipped

Question 7

Type II

Answer 7

Physis and metaphysis
Above

Question 8

Type III

Answer 8

Physis and epiphysis
Lower

Question 9

Type IV

Answer 9

Epiphysis, physis, and metaphysis
Through

Question 10

Type V

Answer 10

crush injury of physis
Ruined

Question 11

Type VI

Answer 11

Rang’s: involves perichondral ring or associated periosteum of physis

Question 12

Type VII to IX ( 7-9) unique how?

Answer 12

Ogdens
do not directly involve physis,
though may disrupt blood supply

Question 13

Type VII

Answer 13

Osteochondral epiphysis fracture

Question 13

Type VIII

Answer 13

Metaphysis fracture

Question 14

Type IX

Answer 14

avulsion of periosteum

Question 15

Tuning Fork is best to identify what type of fracture? less accurate with ?

Answer 15

ID transverse fracture
less accurate for stress fracture

Question 16

immobilization / protection timeline for adults

Answer 16

6 to 8 weeks

Question 17

immobilization / protection timeline for kids

Answer 17

4 to 6 weeks