Positive ulnar variance
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At the time the article was created Yuranga Weerakkody had no recorded disclosures.View Yuranga Weerakkody's current disclosures
At the time the article was last revised Daniel J Bell had no financial relationships to ineligible companies to disclose.View Daniel J Bell's current disclosures
Positive ulnar variance describes where the distal articular surface of the ulna is more than 2.5 mm distal 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.
Maximum forearm pronation results in an increase in positive ulnar variance, whereas maximum forearm supination decreases ulnar variance 1.
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- 2. DiFiori J, Puffer J, Mandelbaum B, Dorey F. Distal Radial Growth Plate Injury and Positive Ulnar Variance in Nonelite Gymnasts. Am J Sports Med. 1997;25(6):763-8. doi:10.1177/036354659702500607 - Pubmed