A knee brace includes a support module including a first body, a second body, and a hinge movably coupling the first body to the second body. The hinge includes a pin and a receptacle in the first and second bodies. The pin defines a plurality of teeth thereon and the receptacle defines a plurality of teeth therein. The plurality of teeth on the pin are configured to engage with the plurality of teeth in the receptacle such that the pin is rotatable and translatable within the receptacle. The knee brace also includes a fastener configured to releasably attach the knee brace to a leg. The first and second bodies couples with a first portion of the leg and with a second portion of the leg via the fastener. The first and second portions of the leg are separated by a knee joint of the leg.