A method for controlling an orthopedic joint of a lower extremity in at least one degree of freedom by means of an adjustable actuator for adjusting an orthopedic apparatus to walking situations that differ from walking on a plane. The orthopedic apparatus comprises top connecting members to connect to a limb, and an orthopedic element that is hingedly arranged distal to the connecting members. The method includes sensing, with sensors, several parameters of the orthopedic apparatus； comparing the sensed parameters with criteria that have been established based on several parameters and/or parameter curves and are stored in a computer unit； selecting a criterion that is suitable on the basis of the determined parameters and/or parameter curves； and adjusting resistances to movements, extents of movements, driving forces, and/or the progresses thereof in accordance with the selected criterion in order to control special functions that differ from walking on a plane.
