Positive ulnar variance

Positive ulnar variance describes where the distal articular surface of the ulna is more distal when compared to the articular surface of the radius.

It plays important role in wrist pathology such as ulnar impaction syndromes and thinning of the triangular fibrocartilage complex.

Radiographic features

Maximum forearm pronation results in an increase in positive ulnar variance, whereas maximum forearm supination decreases ulnar variance 1.

See also

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Article information

rID: 20037
Tag: stub, refs
Synonyms or Alternate Spellings:

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Cases and figures

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