Prosthetic devices allow for full articulation of the joint, while absorbing impact of the components during normal use that will reduce wear on the device components and prolong life. The device may include a bone implantable component and a bearing component having an articulation surface that is sized and shaped to substantially mate with at least a portion of the bone implantable component and a damping mechanism that includes a contact member disposed at least primarily inside a cavity; a biasing member biasing the contact member toward an upper aperture of the cavity and means for capturing the contact member within the cavity.

A modular joint assembly for a brace device for a joint is provided. The modular joint assembly can include an elongated upper arm that can be fastened to an upper leg strut of the brace device, and an elongated lower arm that can be fastened to a lower leg strut of the brace device. The upper arm and the lower arm can be connected with each other at a pivot axis about which the upper arm and the lower arm pivot relative to each other. One or both of the upper arm or the lower arm can be separated from another of the upper arm or the lower arm and replaced with a longer or shorter arm to change a location of the pivot axis in the brace device.

Prosthetic devices allow for full articulation of the joint, while absorbing impact of the components during normal use that will reduce wear on the device components and prolong life. The device may include a bone implantable component and a bearing component having an articulation surface that is sized and shaped to substantially mate with at least a portion of the bone implantable component and a damping mechanism that includes a contact member disposed at least primarily inside a cavity; a biasing member biasing the contact member toward an upper aperture of the cavity and means for capturing the contact member within the cavity.