What is Boutonniere Deformity?
Boutonniere Deformity is an injury to the tendons in your fingers that usually prevents the finger from fully straightening. The result is that the middle joint of the injured finger bends down, while the fingertip bends back. If this injury is treated promptly, the deformity may progress, resulting in permanent deformity and impaired functioning.
Symptoms of Boutonnière Deformity
- Swelling and pain on the top of the middle joint finger
- Middle finger joint cannot be straighten
- Fingertip cannot be bend
Causes of Boutonnière Deformity
- Forceful blow to the bent finger