emq: trauma week 1.
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Match the description of each c-spine fracture to the correct diagnosis.
Flexion teardrop fracture Bilateral facet joint dislocation Clay shoveler’s fracture Anterior subluxation injury Wedge compression fracture |
Jefferson fracture Unilateral facet joint dislocation Hangman’s fracture Posterior neural arch fracture Extension teardrop fracture. |
EMQ 1.
Flexion of the spine along the vertical axis causes anterior compression of a spinal body with anterior displacement of an anteroinferior fragment.
EMQ 2.
Abrupt flexion of the neck combined with contraction of the upper body and lower neck muscles avulses a segment of the C7 spinous process.
EMQ 3.
A downwards compression force transmitted through the occipital condyles displaces the lateral masses and fractures the anterior and posterior arches of the atlas.
EMQ 4.
Hyperextension causes bilateral fractures through the pedicles of C2.
EMQ 5.
Hyperextension of the head compresses C1 against C2 causes the posterior arch of c1 to fracture. The transverse ligament and anterior arch are not involved.
Flexion of the spine along the vertical axis causes anterior compression of a spinal body with anterior displacement of an anteroinferior fragment.
EMQ 2.
Abrupt flexion of the neck combined with contraction of the upper body and lower neck muscles avulses a segment of the C7 spinous process.
EMQ 3.
A downwards compression force transmitted through the occipital condyles displaces the lateral masses and fractures the anterior and posterior arches of the atlas.
EMQ 4.
Hyperextension causes bilateral fractures through the pedicles of C2.
EMQ 5.
Hyperextension of the head compresses C1 against C2 causes the posterior arch of c1 to fracture. The transverse ligament and anterior arch are not involved.