1 mm of step-off or >60degof scapholunate or >15deg of lunato- capitate angulation. The subtle signs of displacement or instability are - opening & obliquity of fracture line, angulation of distal fragment, and fore shoening of scaphoid image. Displaced- unstable fractures are treated by percutaneous screw fixation or OR & IF by k - wires, compression screw or Herbe screw. - Undisplaced ununited (nonunion) fractures may be treated by excavation of the scaphoid & placement of volar inlay coicocancellous bone graft (Matti Russe procedure). In most cases of stable nonunion cancellous bone graft from either the distal radius (for small defects) or the iliac crest (preferable because of its superior osteogenic and mechanical propeies) is packed into the defect. Dorsal cailage is not disturbed. This provides a hinge and facilitates assessment of scaphoid length. If fracture site is angulated or collapsed coico cancellous volar graft is employed to correct the deformity. If the proximal pole is avascular and no significant radiocarpal ahritis is present, revascularization of the scaphoid with a vascularized bone graft from dorsal radius or preferably pronator quadratus graftQ should be performed. Paial radial stylodectomy should be performed in all patients with radiological signs of stage I radioscaphoid ahritis limited to scaphoid and radial styloid. - Once degenerative ahritis is evident at the radio -carpal joint, salvage procedures includes proximal row carpectomy, scaphoid excision and mid carpal ahodesis or total wrist ahrodesis. Clinical Presentation - The patient is usually and adolescent boy or young adult who gives a h/o falling on outstretched hand usually during active spos. Commonly the injury is misinterpreted as "just a sprain". Like colle's it is a supination - dorsiflexion injury. - Fullness & tenderness in anatomical snuff boxQ. Radial side wrist pain; passive dorsiflexion to the radial side is painful, grip is weak and release of grip gives transitory pain, resisted pinch between the thumb and index finger is uncomfoable. Proximal pressure along the axis of the thumb may be painfulQ.">