Scapholunate dissociation

Terry Thomas is sign seen in:

1.Scaphoid fracture
2.Scapholunate dissociation
3.Fracture acetabulum
4.Meniscus cyst

Explanation:

image

Terry Thomas sign refers to gap seen between scaphoid and lunate in scapholunate dissociation seen as below compared to space between tooths of terry Thomas.