Boutonniere deformity

Boutonnière deformity (pronunciation: boo-ton-yair de-for-mi-tee) is a medical condition characterized by a deformity in the fingers or toes, in which the middle joint bends inwards while the outermost joint bends outwards. The term "Boutonnière" is derived from the French word for "buttonhole," which describes the appearance of the affected digit.

Etymology

The term "Boutonnière" is of French origin, meaning "buttonhole." This term was chosen to describe the condition due to the characteristic appearance of the affected finger or toe, which resembles a button being pushed through a buttonhole.

Symptoms

The primary symptom of a Boutonnière deformity is the characteristic bending of the joints in the finger or toe. This can result in difficulty moving the affected digit, pain, and swelling. In some cases, the deformity may be present at birth (congenital), while in others it may develop over time due to injury or disease.

Causes

Boutonnière deformity can be caused by a variety of factors, including rheumatoid arthritis, injury to the finger or toe, or congenital conditions. In some cases, the exact cause of the deformity is unknown.

Treatment

Treatment for Boutonnière deformity typically involves physical therapy and, in some cases, surgery. The goal of treatment is to restore normal function and appearance to the affected digit.

Related Terms

• Rheumatoid arthritis
• Congenital
• Physical therapy

External links

• Medical encyclopedia article on Boutonniere deformity
• Wikipedia's article - Boutonniere deformity

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