A break in one of the small wrist bones located approximately in the middle of the wrist (lunate ? figure 2) usually following a fall onto an outstretched hand. Associated with severe wrist pain at the time of injury that may settle to an ache and can occasionally radiate into the hand or forearm. Swelling and tenderness on firmly touching the affected bone are also typically present. Distal Radio-Ulnar Joint Sprain Tearing of connective tissue and / or ligaments of the joint located between the ends of the forearm bones just before the wrist (distal radioulnar joint - figure 8) typically as a result of a fall onto an outstretched hand, often in combination with twisting of the wrist and forearm. Associated with pain in the wrist that may increase when firmly touching the affected region of the joint, restricted wrist joint mobility (particularly rotation of the wrist) and often swelling. Figure 8 ? Distal Radio-Ulnar Joint Carpal Dislocation Tearing of connective tissue joining adjacent small bones of the wrist (carpal bones ? figure 5) with subsequent displacement and separation of the affected bones forming the joint so the joint surfaces are no longer situated next to each other. Typically occurs as a result of severe trauma such as a fall onto an outstretched hand and causes severe wrist pain, deformity of the wrist, pain on firmly touching the affected joint and sometimes pins and needles or numbness. Kienbock's disease Gradual bony tissue death to one of the small bones