External Skeletal Fixation

11 terms by samstewartrvaa 

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2

external fixators require a minimum of how many pins per fragment?

3

what is the optimal number of pins per fragment for an external fixator?

1 cm

how much distance should be between the skin and the gripping clamp?

25

a pin should be no more than what percentage of the bone diameter?

smooth

what type of pins for external fixation are placed at opposing angles of 60-65%?

positive profile

what type of pins for external fixation are placed in a parallel alignment and provide superior strength?

circular

type of fixator used for complicated fractures of the radius and ulna, limb shortening/lengthening procedures, or correction of angular deformities

2

circular fixators use how many rings on each side of the fracture?

90

the wires for circular fixators should intersect at what degree angles?

4, 8

following the placement of an external fixator, post op radiographs should be taken immediately and then again at what 2 other times? (both in weeks)

8 weeks

most external fixator frames are removed after how long?

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