Spine Fractures

Front 1

mech of injury:
craniocervical disarticulation

Back 1

hyperflexion and hyperextension (combineD)

Front 2

flexion injuries of the spine

Back 2

anterior subluxation (aka hyperflexion sprain)
clay shoveler's fx
compression fx
b/l interfacetal dislocation
flexion teardrop fx

Front 3

findings of hyperflexion sprain

Back 3

hyperkyphotic angulation
fanning of posterior elements
facet unconvering
disk space asymmetry (anterior/posterior)

Front 4

complication of hyperflexion sprain

Back 4

delayed instability

Front 5

where do clay shoveler's fx occur

Back 5

Ct>T1>C6

Front 6

findings of burst fx

Back 6

comminuted fx
retropulsion
straight alignment

Front 7

findings of hyperflexion teardrop fx

Back 7

fx-dislocation
kyphotic angulation
disruption/fx posterior elements
a/w spinous process fx

Front 8

complication of hyperflexion teardrop fx

Back 8

-> anterior cord syndrome/quadriplegia

Front 9

findings of b/l interfacetal dislocation

Back 9

flexion and distraction injury
ligamentous injury of all 3 columns

Front 10

complication of b/l interfacetal dislocation

Back 10

myelopathy

Front 11

"old" name for b/l interfacetal dislocation

Back 11

b/l locked facets

Front 12

findings of unilateral interfacetal dislocation

Back 12

minimal subluxation
bowtie/butterfly sign
spinous process deviation (to the side of the dislocation)

Front 13

mechanism of injury in unilateral interfacetal dislocation

Back 13

FLX and rotation

Front 14

mechanism of injury in b/l interfacetal dislocation

Back 14

flx and distraction injury

Front 15

mechanism of injury in hangman's fx

Back 15

hyperextension and distraction (and possibly flexion)

Front 16

findings of hangman's fx

Back 16

b/l pars interarticularis fx

Front 17

complication of hangman's fx
associated findings

Back 17

may have transient myelopathy
a/w add'l cspine fx, and T/L spine fxs

Front 18

mechanism of injury in extension teardrop fx

Back 18

avulsion fx
ALL is intact but pulls on weakened bone

Front 19

findings of hyperextension dislocaiton

Back 19

widened anterior disk space
often has avulsed fragment

Front 20

complication of hyperextension dislocation

Back 20

central cervical cord syndrome

Front 21

findings of jefferson fx

Back 21

burst fx of C1, into 3-4 parts

Front 22

if you see DISH on spine XR in setting of trauma, next step

Back 22

get CT

Front 23

mechanism of injury in chance fx

Back 23

flexion distraction injury

Front 24

findings of chance fx

Back 24

posterior element fx (pedicle, lamina, transverse and spinous ligaments)

Front 25

most common location of chance fx

Back 25

T12-L2

Front 26

significance of chance fx

Back 26

50% of time a/w peritoneal injuries

Front 27

what causes limbus vertebra

Back 27

herniated nucleus pulposis between ring apophysis and body

Front 28

what ligament injury is seen with Jefferson fx

Back 28

transverse ligament

Front 29

which odontoid fxs are unstable

Back 29

2 and 3 (and sometimes 1)

Front 30

which dens fx has the highest rate of nonunion and why

Back 30

fx is above the accessory ligament and vascular supply

Front 31

where do burst fxs occur

Back 31

C3-C7

Front 32

which c spine fx is most severe

Back 32

flexion teardrop fx
(-> anterior cord syndrome)

Front 33

what ligamentous injuries are assoc with flexion teardrop fx

Back 33

all are disrupted

Front 34

what ligament is dirupted in clay-shoveler's fx

Back 34

interspinous ligament