Boutonniere Deformity: Causes, Symptoms, and Treatment
Boutonniere deformity of the finger(s) is a condition characterized by a specific finger deformity that affects the middle joint (PIP joint) and the end joint (DIP joint). This deformity occurs when the tendon that straightens the middle joint becomes damaged or disrupted, causing the finger to bend downward at the middle joint while the end joint hyperextends. As a result, the affected finger takes on a bent appearance, resembling a buttonhole (hence the name “boutonniere”).
Common causes of boutonniere deformity include trauma, such as a forceful blow to the finger, or conditions like rheumatoid arthritis. Symptoms may include pain, swelling, stiffness, and difficulty straightening or extending the affected finger(s).
Early treatment is crucial to prevent further deformity and restore normal finger function. Non-surgical options may include splinting, exercises, and medications to reduce inflammation. In more severe cases, surgical intervention may be necessary to repair the damaged tendon and restore proper finger alignment.
If left untreated, boutonniere deformity can lead to permanent finger deformity and impaired hand function. Seeking timely medical attention is essential to ensure the best possible outcome and improved quality of life.
