Bilateral lunotriquetral coalition

Case contributed by Dr Samir Benoudina

Presentation

55 year old women with atraumatic pain of both hands and wrists. Ball catcher view was performed.

Patient Data

Age: 55 years
Gender: Female

Bilateral and complete fusion of the lunate and triquetrum representing an osseous luno-triquetral coalition.

Annotated image

Bilateral and complete fusion of the lunate and triquetrum representing an osseous luno-triquetral coalition.

Case Discussion

Lunotriquetral coalition is the most frequent type of carpal coalition. It is often bilateral and asymptomatic. It is more common in women.

The ball-catcher view is useful for finding early erosions at the base corners of the proximal phalanges, in arthropathies such as rheumatoid arthritis.

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