Prosthetic joint and limb components utilize a single curved dampening cylinder to reduce component count and wear. A prosthetic foot/ankle requires only three major components namely a housing adapted for coupling to a foot blade an ankle component adapted for coupling to a pylon and a piston that moves within a curved cylinder in the housing during ambulation. The ankle component is pivotally attached to the housing at the center of curvature of the cylinder. The piston defines front and rear variable volume chambers in the cylinder. The chambers are in fluid communication with one another via a port such that fluid is exchanged between the chambers through one way check valves as the ankle pivots between plantarflexion and dorsiflexion. Fluid flow is independently adjustable to establish and maintain desired levels of dampening during plantarflexion and dorsiflexion including different levels of dampening.
