Reduction (redirected from reductional)

reduction /re·duc·tion/ (-shun)

1. the correction of a fracture, luxation, or hernia.

2. the addition of hydrogen to a substance, or more generally, the gain of electrons.

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closed reduction  the manipulative reduction of a fracture without incision.

open reduction  reduction of a fracture after incision into the fracture site.

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re·duc·tion (r-dkshn)

n.

1. The act, process, or result of reducing.

2. The amount by which something is lessened or diminished.

3. Restoration of an injured or dislocated part to its normal anatomical relation by surgery or manipulation.

4. The first meiotic division, in which the chromosome number is reduced. Also called reduction division, reduction of chromosomes.

5. A decrease in positive valence or an increase in negative valence by the gaining of electrons.

6. A reaction in which hydrogen is combined with a compound.

7. A reaction in which oxygen is removed from a compound.

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re·duction·al adj.

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Reduction

The restoration of a body part to its original position after displacement, such as the reduction of a fractured bone by bringing ends or fragments back into original alignment. The useof local or general anesthesia usually accompanies a fracture reduction. If performed by outside manipulation only, the reduction is described as closed; if surgery is necessary, it is described as open.

Mentioned in: Fractures, Methemoglobinemia

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reduction

1. the correction of a fracture, luxation or hernia.

2. the addition of hydrogen to a substance, or more generally, the gain of electrons; the opposite of oxidation.

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angle of reduction

in the Ortolani maneuver, the point at which the femoral head returns to the acetabulum.

closed reduction

the manipulative reduction of a fracture without incision.

reduction forceps

bone holding forceps used to hold fracture fragments in position during surgery.

open reduction

reduction of a fracture after incision into the fracture site.