What causes a mallet finger?
The tendon becomes disconnected from the bone and can no longer extend the terminal joint of the finger.
What are the symptoms?
The deformity is typical and is usually painless after a week or so.
How to diagnose it?
An X-ray will rule out an associated fracture or joint damage.
Sometimes, surgery is preferred to repair the tendon or fix a fracture. Therapy will also be required to maximize recovery.