Bracq classified fractures of the olecranon in pediatric patients based on the radiographic course of the fracture line.
Radiographs required: anteroposterior and lateral radiographs of the elbow
Radiographic Appearance
Type
unique fracture line close to and parallel to the growth plate
A
vertical (running along the longitudinal axis of the ulna)
B
oblique through the mid or distal joint surface
C
through the joint surface near the proximal end of the ulna
D
complex (multiple fragments, comminuted)
E
where:
• A Type B fracture does not involve the articular surface. A Type A fracture may or may not involve the articular surface; if it does involve the joint it is limited.
Grading is performed based on displacement of the fragments.
Displacement
Signficance
Grade
none (nondisplaced)
0
< 2 mm
slight
1
>= 2 mm
important
2
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