A knee brace is provided with push button actuatable stops, wherein the
stops are biased outward into angular locking positions and inwardly
directed pressure on the push buttons releases the stops and permits
angular adjustment of the stops. A pair of catch plates with locking
recesses facing inward, are provided, and outwardly biased locking pins
engage the recesses in both catch plates. Each of the stop assemblies has
an outwardly directed plate extending over the outer cover plate, and
this plate is coupled to the physical stop member around the outer edge
of the outer cover plate. The cover plate has angular indicia thereon,
which may be viewed through windows in the outwardly extending plate
portions of the stop assemblies.