hinge joint - Hutchinson encyclopedia article about hinge joint Printer Friendly
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hinge joint

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hinge joint

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The knee is an example of a hinge joint.

In vertebrates, a joint where movement occurs in one plane only. Examples are the elbow and knee, which are controlled by pairs of muscles, the flexors and extensors.


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? Mentioned in ? References in periodicals archive
 
According to the AAOS, the knee is considered a hinge joint because of its ability to bend and straighten like a hinged door.
The Pro-Glide Dynamic ROM Knee Orthosis has a rigid, lightweight, aluminum frame that allows easy alignment of the hinge joint with the patient's knee and a precision gear-hinge system that provides smooth tension control with a simple turning of the adjustment mechanism.
We see that for a simple hinge joint (a joint with a fixed ICR), the maximum moment arm is attained at [theta]=90 degrees, If we plotted moment arm versus joint angle for this simple hinge joint, we would obtain a simple sine function that has a maximum of 5 cm occurring at [theta]=90 degrees.
 
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