Atlas of MSK Measurements
using the AP view of the wrist, identify distance between scaphoid and lunate. The distance is between the proximal ulnar corner of the scaphoid and the proximal radial corner of the lunate.
if > 4 mm then Terry-Thomas sign; widened ( RID5797 ) carpal joint space
wrist ( RID2177 ), wrist joint ( RID2202 ), scaphoid bone of hand ( RID2181 ), lunate bone ( RID2187 )
how to draw the scapholunate distance