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34 Cards in this Set
- Front
- Back
mech of injury:
craniocervical disarticulation |
hyperflexion and hyperextension (combineD)
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flexion injuries of the spine
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anterior subluxation (aka hyperflexion sprain)
clay shoveler's fx compression fx b/l interfacetal dislocation flexion teardrop fx |
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findings of hyperflexion sprain
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hyperkyphotic angulation
fanning of posterior elements facet unconvering disk space asymmetry (anterior/posterior) |
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complication of hyperflexion sprain
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delayed instability
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where do clay shoveler's fx occur
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Ct>T1>C6
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findings of burst fx
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comminuted fx
retropulsion straight alignment |
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findings of hyperflexion teardrop fx
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fx-dislocation
kyphotic angulation disruption/fx posterior elements a/w spinous process fx |
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complication of hyperflexion teardrop fx
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-> anterior cord syndrome/quadriplegia
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findings of b/l interfacetal dislocation
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flexion and distraction injury
ligamentous injury of all 3 columns |
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complication of b/l interfacetal dislocation
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myelopathy
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"old" name for b/l interfacetal dislocation
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b/l locked facets
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findings of unilateral interfacetal dislocation
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minimal subluxation
bowtie/butterfly sign spinous process deviation (to the side of the dislocation) |
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mechanism of injury in unilateral interfacetal dislocation
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FLX and rotation
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mechanism of injury in b/l interfacetal dislocation
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flx and distraction injury
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mechanism of injury in hangman's fx
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hyperextension and distraction (and possibly flexion)
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findings of hangman's fx
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b/l pars interarticularis fx
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complication of hangman's fx
associated findings |
may have transient myelopathy
a/w add'l cspine fx, and T/L spine fxs |
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mechanism of injury in extension teardrop fx
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avulsion fx
ALL is intact but pulls on weakened bone |
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findings of hyperextension dislocaiton
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widened anterior disk space
often has avulsed fragment |
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complication of hyperextension dislocation
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central cervical cord syndrome
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findings of jefferson fx
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burst fx of C1, into 3-4 parts
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if you see DISH on spine XR in setting of trauma, next step
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get CT
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mechanism of injury in chance fx
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flexion distraction injury
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findings of chance fx
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posterior element fx (pedicle, lamina, transverse and spinous ligaments)
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most common location of chance fx
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T12-L2
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significance of chance fx
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50% of time a/w peritoneal injuries
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what causes limbus vertebra
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herniated nucleus pulposis between ring apophysis and body
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what ligament injury is seen with Jefferson fx
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transverse ligament
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which odontoid fxs are unstable
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2 and 3 (and sometimes 1)
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which dens fx has the highest rate of nonunion and why
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fx is above the accessory ligament and vascular supply
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where do burst fxs occur
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C3-C7
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which c spine fx is most severe
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flexion teardrop fx
(-> anterior cord syndrome) |
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what ligamentous injuries are assoc with flexion teardrop fx
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all are disrupted
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what ligament is dirupted in clay-shoveler's fx
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interspinous ligament
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