The patient had a fracture of the distal radius, combined with the separation of the lower ulnar radial joint, then conservative treatment, splinting for 3 months, wrist pain during activity, limited forward rotation, X-rays are as follows: later treatment there are three ways: 1, if after activity exercise daily life is not affected, can not be operated; 2, ulnar head removal; 3, screw fixation of the lower ulnar radial joint, repair or removal of triangular cartilage;