Fig. (9) 39-year-old male, left post-traumatic wrist OA after distal radius fracture, TWA with the Universal2, Courtesy by Dr. emeritus Friedbert Kretschmer, Bielefeld/Germany, 2016: (A) Based on the misalignment of both TWA components (i.e. mechanical imbalance), the patient reported progressive disability. (B) Planning revision TWAwith the same implant. (C) Postoperative radiographs demonstrating revision TWA with improved alignments accompanied by improvement of patient’s disability in the further course.