César Pelizer The knees are hinge joints, meaning they work like a door ... and certain types of physical activity — affecting the bones, ligaments, cartilage or muscles in and around the ...

Medically reviewed by Stuart Hershman, MD Broken ankles may involve one or more of the three bones of the ankle joint—the ...

It is considered a synovial joint, which is the term used for an area where bones move against each other. The ankle joint acts like a hinge to connect your foot to your leg, allowing movement. In ...