Scapholunate Spacing——–separation Copy

. . Note the increased spacing between the scaphoid and lunate. It is curious to note that on the lateral view the carpal bones (lunate, capitate ) are properly aligned with the radius axis ——–i.e. there is no lunate or perilunate dislocation. Please scroll back and note the increased scapholunate spacing of Illustration 78——in the absence of the lateral view I am unable to determine if there is a lunate dislocation, perilunate dislocation or neither. NOTE These are beautiful examples to demonstrate the need to look at all three views since the abnormality may be revealed in only one view. Your systematic analysis of X-Ray and CT interpretation must include looking at all views as you search for pneumonia, pneumothorax, masses, fractures, dislocations, air, misalignments, acute and old bleeding, etc




Illustration 80 Scapholunate Spacing——–separation ( The Terry Thomas Sign )

You will occasionally encounter a patient with a fracture of the rib, spine, upper or lower extremity etc. that appeared related to only minor or no trauma. As an example the patient might be standing and suddenly experience pain and collapse of the hip area and the X-Ray may reveal a fracture of the hip. When you are faced with this scenario, you should think ” pathologic fracture ” and proceed with your investigation accordingly.

Please click on


for an example of a pathologic fracture