A system and method for joint restoration by extracapsular means includes
an actuator operable to apply a force to a portion of a bone to effect a
change 5 in the joint space geometry. One embodiment of the system
includes an actuator operable to apply a cyclic loading to subchondral
bone of a femur, wherein loads of a predetermined magnitude are
alternately applied and released. Between periods of cyclic loading, rest
periods are provided where no load is applied. Over time, the femoral
joint surface is remodeled in accordance with the location, direction,
magnitude, and frequency of the loading.