Spondys & Fractures Flashcards
An impaction of the appendicular skeleton or skull will result in a _____ fracture.
Depression fracture
The name of the fracture in any bone that is weakened by localized or systemic disease.
Pathologic fracture
The name of the sign used to describe a lucent gap between a single vertebral body is ____.
Empty Vertebra sign
(Note: Marchiori terms this as Ghost Vertebra)
A fracture which gives clinical signs of its presence without any radiographic evidence.
Occult fracture
The name of the sign that occurs at the proximal tibial plateau due to an impaction fracture which helps aid in diagnosis. It refers to fluid seen on cross-table lateral knee x-rays.
Fat-Blood Interface sign
(aka = FBI sign)
A condition known to cause joint mice of the distal femur and is a form of osteochondral fracture with unknown etiology is _____.
Osteochondritis Dissecans
(OCD)
A calcified MCL of the knee or an abnormal bone growth adjacent to the medial condyle of the knee would be an indication of _______
Pellegrini-Stieda disease
(aka = Pellegrini disease)
A collapse of a vertebral body due to pathologic bone destruction is called _____
Pathologic Compression Fracture
MC location for “Perched Facets” are in which part of the spine?
C-spine
Which vertebral endplate is more commonly fractured?
Superior
This fracture occurs when a portion of bone is driven into its adjacent segment.
Impact or Impaction fracture
The yellow line is called _______

What is normal?
What is abnormal & what does that mean?
Iliofemoral Line
Normal is smooth along the out wing of the ilium down around the superior femoral head as drawn.
Abnormal is not smooth and suggests dislocation of the femur.
An isolated fracture through bone growth plate
Salter Harris I
The blue dotted line is an example of what?

What is normal?
What is abnormal & what does it mean?
Shenton’s Line (blue dots)
Normal = smooth line
Abnormal = broken line, not smooth. Indicates hip dislocation.
This is an example of drawing _____ line.

Ullman’s Line
What is the name of the fracture which is incomplete where bone is bent without gross cortical disruption?
Where is the MC location for these?
Bowing fracture
(aka = plastic fracture)
MC location = Radius or Ulna, sometimes Tibia
MC segments fractured in T/L spine
T12-L1
A lateral patella dislocation is seen with an associated osteochondral fracture. This fractured piece is called a ____ fracture.
Flake fracture
A physeal fracture that passes through the epiphysis, growth plate, and metaphysis.
Salter-Harris IV
An iliac wing fracture is also known as ____
Duverny’s Fracture
In the absense of fracture lines, a calcaneal compression fracture may be indicated when ______ is less than 28 degrees.
Bohler’s Angle
If bone trabeculae appears to be microfractured and there is associated edema and hemorrhage. This is called a ____.
Bone bruise
(aka = trabecular compression fracture)
What 2 forces combine to create a Burst Fracture?
Axial compression + flexion
What is the name of the fracture in which compressive forces cause the cortex to bulge outward (on one or both sides of the involved bone)?
Torus Fracture
(aka = buckling fracture)

















