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saddle joint

 

Definition: a biaxial synovial joint in which the double motion is effected by the opposition of two surfaces, each of which is concave in one direction and convex in the other; as in the carpometacarpal joint of the thumb.

Synonym(s): articulatio sellarisTA, articulatio ovoidalis

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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