Boutonniere Deformity - Finger Deformity
A boutonniere deformity occurs when the tendon that straightens the middle joint of your finger is injured, weakened or stretched. The injury allows the middle finger joint to bend (flex) and the end finger joint to pull back and hyperextend. This makes the finger appear crooked.
A boutonniere deformity can cause pain and loss of function. Treatments include splinting, hand therapy, and surgery. When treated promptly, conditions tend to have the best outcomes.
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