Part 3 images

Question 1

What mechanism does this occur from?

Answer 1

hyperextension mechanism

Question 2

What is the diagnosis? What makes you think so?

Answer 2

posterior arch fracture of C1

there is a thin vertical line going through the posterior arch of atlas

Question 3

Findings and diagnosis?

Answer 3

Findings: bilateral lateral mass offset

diagnosis: Jefferson’s fx

Question 4

What is the diagnosis? What disease is this most commonly seen in?

Answer 4

atlantoaxial instability

RA

Question 5

What is the diagnosis?

Answer 5

Type II odontoid fracture (high dens fracture)

Question 6

What is the diagnosis?

Answer 6

low dens fracture (Type III odontoid fracture)

Question 7

Findings? Diagnosis?

Answer 7

broken Harris’ ring

hangman’s fracture

Question 8

findings? diagnosis?

Answer 8

decreased anterior body height, sclerosis of superior endplate

compression fracture at L1

Question 9

Old or new fracture?

Answer 9

new

Question 10

most significant diagnosis?

findings?

Answer 10

burst fracture

vertebral body “exploded” into several fragments

Question 11

findings? diagnosis?

Answer 11

bowtie sign

unilateral facet dislocation

Question 12

findings? diagnosis?

Answer 12

perched facets

incomplete bilateral facet dislocation

Question 13

Findings? Diagnosis?

Answer 13

interlocking facets, bilateral facet dislocation

Question 14

Findings? Diagnosis?

Answer 14

triangular fragment at the anterior inferior body, facets dislocated

flexion teardrop fracture

Question 15

Findings? Diagnosis?

Answer 15

triangular fragments in the anterior inferior part of the body, NO facet dislocations

extension teardrop fracture

Question 16

Findings? Diagnosis?

Answer 16

fracture of the spinous process of C6

Clay Shoveler’s fracture

Question 17

Diagnosis?

Answer 17

Spinous fracture at C4

Question 18

Diagnosis?

Answer 18

Laminar fracture

Question 19

Diagnosis?

Answer 19

Pillar fracture at C6

Question 20

Findings? Diagnosis?

Answer 20

increased interspinous space between C7 and T1

whiplash injury

Question 21

Findings?

Diagnosis?

Answer 21

decreased vertical height of L1 anterior body

compression fracture of L1

Question 22

Findings? Diagnosis?

Answer 22

Dowager’s hump due to multiple compression fractures

Compression fractures most likely due to osteoporosis

Question 23

Findings? Diagnosis?

Answer 23

Decreased anterior and posterior height at L3, posterior body convexity

burst fracture of L3

Question 24

Findings? Diagnosis?

Answer 24

increased radiolucency of the pedicles on the AP, decreased body height anteriorly and posteriorly

pathological fracture most likely due to osteoporosis, multiple myeloma or lytic mets

Question 25

Findings? Diagnosis?

Answer 25

horizontal line between arch and body Chance fracture

Question 26

Findings? Diagnosis?

Answer 26

dark line on the left TVP TVP fracture at L1

Question 27

Diagnosis? How did you know?

Answer 27

Spondylolytic spondylolisthesis at L4 with about 50% anterior displacement there is a pars defect and no obvious degeneration

Question 28

Diagnosis? How do you know?

Answer 28

degenerative spondylolisthesis at L5 with about 40% anterior displacement there is decreased disc height between L5 and S1

Question 29

What is the sign? What diagnosis is associated with this?

Answer 29

inverted Napolean hat sign associated with spondylolithesis

Question 30

Diagnosiss?

Answer 30

sacral fracture

Question 31

Diagnosis?

Answer 31

coccygeal fracture

Question 32

diagnosis?

Answer 32

duverney fracture

Question 33

Findings? diagnosis?

Answer 33

\>10mm pubic symphysis (diastasis), soft tissue injury, "open book fx" sprung pelvis

Question 34

Findings? Diagnosis?

Answer 34

bilateral fracture lines aat superior and inferior rami fracture, lots of soft tissue injury straddle fracture

Question 35

Findings? diagnosis?

Answer 35

contralateral double vertical fx at the superior pubic ramus and the contralateral iliac wing bucket handle fracture

Question 36

findings? Diagnosis?

Answer 36

ipsilateral vertical shearing fx of the superior and inferior ramus as well as the ipsilateral SI joint Malgaigne fracture

Question 37

Diagnosis?

Answer 37

avulsion fracture of the ASIS

Question 38

diagnosis?

Answer 38

avulsion fracture of the AIIS

Question 39

diagnosis?

Answer 39

avulsion fracture of the ischial tuberosity

Question 40

Name the part of the pelvis and what muscle causes the avulsion fracture.

Answer 40

white: iliac crest, abdominal muscles orange: ASIS, sartorius red: AIIS, fecus femoris green: symphysis adductor group blue: lesser trochanter, iliopsoas yellow: ischial tuberosity, hamstrings pink: greater trochanter, gluteal muscles