47-year-old male has injured his right wrist while playing football 30 years ago. He always had some manageable pain while playing tennis. The pain increased during the last 12 months. The wrist CT scan that the expert recommended revealed diastasis between scaphoid and semilunar bone, palmar dislocation, dorsal intercalated segmental instability (DISI), marked radio-scaphoid arthritis and reactive sclerosis of the subchondral bone. This findings conformed the previous diagnosis of post traumatic osteoarthritis of radio-carpal joint brought upon by ligamentous injuries due to trauma.