Change: Moved by AndyC Feb 8 2010, 7:15 AM EST

Change: mechanism of injury wasfrom not3 known.metres. He had seversevere pain in his right wristwrist.The lateral wrist demonstrates a dorsally tilted lunateThe scapholunate angle measures 97 degrees ( 30-60°is normal, 60-80°is questionably abnormal, >80° is   View changes from previous version. (Word count: 892)

Change: carpal bone to visualise on a lateral wrist image. If the lunate is tilted in a dorsal direction on a standard lateral wrist image, a DISI should be considered. If the lunate is tilted in a volar direction a VISI should be considered.DISI (dorsal intercalated segmental instability) Normal   View changes from previous version. (Word count: 808)

Change: Don't be put-off by the apparent complexity of the deformities. A simple approach is to consider the lunate which is usually the easiest bone to   View changes from previous version. (Word count: 807)

Change: There is disruption of all three carpal arcs. The lunate is dorsally rotated producing a more triangular shape to the lunateThe disrupted arc I is marked. The dorsally rotated lunate is marked with a solid white line.Normal wrist for comparison. Nte the   View changes from previous version. (Word count: 496)

Change:  The intercalated segment is the proximal carpal row identified by the lunate. The term 'intercalated segment' refers to it being the part in between the proximal segment of the wrist consisting of the radius and the ulna and the distal segment, represented by the distal carpal row and the metacarpals.   View changes from previous version. (Word count: 380)