Presentation
Chronic right wrist pain and stiffness.
Patient Data
Age: 45 years
Gender: Female
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A frontal radiograph demonstrates an increase in the scapholunate space on an AP radiograph of the wrist, indicates scapholunate dissociation and often can be associated with rotary subluxation of the scaphoid.
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Just to make this sign more clear, for comparison, a normal x-ray of the wrist. Note that there is a much more narrow interval between the scaphoid and the lunate.
Case Discussion
Terry-Thomas sign is an important sign on wrist x-rays that indicate a rupture of the scapholunate ligament leading to the separation of the lunate and scaphoid bones. The injury also causes rotation of the scaphoid bone.
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