Scapholunate dissociation with dorsal intercalated segmental instability

Case contributed by Dr Bahman Rasuli


Falling down with outstretched right hand.

Patient Data

Age: 45 years
Gender: Male

Tearing of the all components of scapholunate ligament involving the central and dorsal components is seen causing to the widening of the scapholunate distance measuring about 6 mm (Terry-Thomas sign).

The lunate is dorsally tilted. The scaphoid is dissociated from the motion of the lunate and is tilted volar. Lateral scapholunate angle is 105 degrees.

Bone marrow edema/bruise also is seen at the distal of radius, scaphoid and capitate bones.

Small mid carpal joint effusion is noted.

Case Discussion

Scapholunate dissociation and dorsal intercalated segmental instability due to complete tearing of the scapholunate ligament complex.

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Case information

rID: 65924
Published: 1st Feb 2019
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included
Institution: Jame Jam Imaging Center

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