Radiology Classification (Quiz 1)

Question 1

Fracture

Answer 1

a disruption in all or part of the cortex of a bone

Question 2

Dislocation

Answer 2

bony components of a joint no longer are in contact with each other

Question 3

Subluxation

Answer 3

bony components of a joint are partially in contact with each other

Question 4

Greenstick fracture

Answer 4

fracture through one cortex

Question 5

Torus Fracture

Answer 5

buckling of the cortex

Question 6

How are fractures described

Answer 6

by the direction of the fracture line
by the relationship of the fragments
by the number of fragments
by the communication with the atmosphere

Question 7

Direction of Fracture

Answer 7

transverse
diagonal or oblique
longitudinal
spiral

Question 8

Transverse Fracture

Answer 8

perpendicular to the long axis of the bone
caused by perpendicular force

Question 9

Diagonal or Oblique

Answer 9

caused by a force usually applied in the same direction as the long axis of the bone

Question 10

Spiral

Answer 10

twisting fracture caused by a torque injury such as planting the foot in a hole while running

Question 11

Simple fracture

Answer 11

two fragments

Question 12

More than two fragments

Answer 12

comminuted

Question 13

Salter Harris Fracture

Answer 13

fractures that involve the epiphyseal plate alone or in combination with an adjacent part of the bone

Question 14

Type I salter Harris

Answer 14

epiphyseal plate alone
often difficult to detect

Question 15

Type II Salter Harris

Answer 15

epiphyseal plate and metaphysis
most common
“corner-sign” small metaphyseal fragment

Question 16

Type III salter harris

Answer 16

epiphyseal plate and epiphysis

Question 17

Type IV Salter Harris

Answer 17

epiphyseal plate, metaphysis, and epiphysis
poorer prognosis
premature closure of epiphysis

Question 18

Type V Salter Harris

Answer 18

crush fracture of epiphyseal plate

Question 19

Colle’s Fracture

Answer 19

fracture of the distal radius with dorsal angulation

Question 20

Smiths fracture

Answer 20

fracture of the distal radius with palmar angulation
fall on a flexed hand

Question 21

Jones Fracture

Answer 21

fx base 5th metatarsal
easily missed

Question 22

Boxer’s Fracture

Answer 22

fx head 5th metacarpal with palmar angulation
most often the result of punching a person or wall

Question 23

Thoracic Compression Fracture

Answer 23

due to axial loading

Question 24

Rib Fracture

Answer 24

occasionally present in association with fractures of the thoracic spine

Question 25

Spondylolysis

Answer 25

most in adolescent athletes and at the L5 vertebrae
defect results in formation of collar around scotty dog model

Question 26

Spondylolithesis

Answer 26

anterior slippage of the vertebral column relative to an adjacent inferior vertebra

L4-5 or L5-S1 level

Question 27

Hangmans fracture

Answer 27

traumatic spondylolithesis of C2

Question 28

Jefferson fracture

Answer 28

burst fracture of the ring of C1 with lateral displacement of both articular masses

Question 29

Flexion tear drop fracture

Answer 29

result of combination of flexion and compression which is usually result of MVA

larger posterior part of the vertebral body is displaced backward into the spinal canal

Question 30

Jumpers fracture

Answer 30

jumping out a window
both anterior and middle column are disrupted

Question 31

chance fracture

Answer 31

horizontal orientation