The JET knee orthosis is specially developed for children. It is used for stabilization of the knee joint after damage to ligaments, anterior or posterior cruciate ligaments, and in case of the meniscus or cartilage damage. The frame, ligaments, and joints are reduced to match the anatomy of a smaller leg. The prefabricated aluminum frame can be adjusted to a certain extent and with associated pads, the orthosis can be individually adapted and allow for greater or lesser volume. For more specific leg shapes where the standard frame does not fit, the orthosis can be custom ordered.