Mallet injuries are common and often caused by a ball or blunt force hitting the end of the finger. This results in damage to the tendon that straightens the ‘tip’ (or the distal interphalangeal joint) of the finger. The injury is characterised by an inability to actively straighten the tip of the finger, which rests in a flexed position.
Mallet injuries can be caused by injury to the tendon or bone. Those affecting the tendon and treated early often respond successfully to splinting. Those affecting the bone can require surgery. It is important that these injuries are diagnosed and treated early.