Swan neck deformity

Bones of the hand

(Click on image for an enlarged view)

Swan neck deformity refers to a structural deformity of the hand in which

proximal interphalangeal joints are in hyperextension
distal interphalangeal joints are in hyperflexion

Commonly seen in injuries or inflammatory conditions like rheumatoid arthritis
Seen in 50% of patients with rheumatoid arthritis
Treatment is by surgical correction

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Bones of the hand

(Click on image for an enlarged view)

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