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Geometry of Condyloid Joint Between Metacarpal And Phalanx Bones

How does the geometry of this joint work? I understand it has ovoid and elliptical surfaces, but not how they move wrt each other.

Is there only sliding, only rolling, or both?

Are the extension/flexion movements equivalent to simply rotating about the center of curvature of the "ball" on the metacarpal? How about the sideways movement?

Is this joint funtamentally different from an arthrodial, hinge or ball-and-socket joint?

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replied November 19th, 2007
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Is this for a homework assignment?

This type of joint allows movement but no rotation. It is a "gliding joint".
Yes, it is fundamentally different ...


http://www.fotosearch.com/LIF125/3d503006/
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replied November 19th, 2007
Hi, thanks for the reply, but I've seen a few descriptions of it and they're all as vague as that link. This is the joint on the knuckles so it does rotate. I'm looking for a more quantitative description of the possible movements it can make for a typical person.


rooted wrote:
Is this for a homework assignment?

This type of joint allows movement but no rotation. It is a "gliding joint".
Yes, it is fundamentally different ...

http://www.fotosearch.com/LIF125/3d503006/
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replied October 28th, 2008
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Any news or update on your findings?
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replied October 28th, 2008
rooted wrote:
Any news or update on your findings?


Thanks for following up, but I've since abandoned that project.
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