The application relates to the field of bone joint reduction, and particularly discloses an orthosis for bone joint reduction and fixation, which solves the problems of single function of existing bone joint fixation orthosis, especially the fixation orthosis for knee joints, and the problems of being not conducive to the
rehabilitation of the joints of patients and the post-
exercise recovery, and the orthosis comprises a base, a limiting box, an opening, a sliding frame, a clamping seat, a fixing clamping plate, an adjusting
assembly, a rotating shaft, an upper guard plate, a side plate, a sliding frame, a pressing seat, a rotating plate I, a sliding seat, a
cam, and a driving
assembly, the outer side of the limiting box is slidably connected with a
pulley, a linkage
assembly is arranged in the limiting box, and the linkage assembly is used for driving the
pulley to slide on the outer side of the limiting box. The device can stably position and fix the knee joints of patients and perform orthosis, does not cause relatively tight clamping to the legs of the patients, is conducive to
blood circulation of the legs of the patients, can also assist in pressing and massaging, is conducive to stimulating the muscles of the patients to keep active, and reduces the subsequent
rehabilitation and exercise period.