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What is a boutonniere deformity?

April 26, 2017boutonniere deformity hand arthritis

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What is a boutonniere deformity?

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Boutonniere deformity, also called buttonhole deformity, can occur as a result of rheumatoid arthritis. With a boutonniere deformity, the middle finger joint will bend toward the palm while the outer finger joint may bend opposite the palm. This deformity may be the result of chronic inflammation of the finger’s middle joint. Treatment for boutonniere deformity may include splinting to keep the middle joint extended. Surgery may be needed.