A mallet injury occurs when an object hits the tip of the finger or thumb and the force of the impact tears the extensor tendon. A result of this might be the rupturing of the tendon or pull the tendon away from its attachment to the finger bone. In some cases, a small piece of bone is pulled away along with the tendon. This is called an avulsion injury.
The finger as a result of this injury may be painful, swollen and bruised. The fingertip usually will drop noticeably and only straightens if you physically push it up.
Non-Surgical: If mallet finger injuries are not treated it can result in stiffness and deformity in the injured fingertip. Mallet fingers can be treated non-surgical most of the time. A non-surgical option is treatment using splinting. The splint will hold the fingertip straight until it heals. This may need to be used for up to eight weeks.
Surgical: Surgery may be considered if there is a large fracture fragment or the joint is out of line. Surgical the fracture is repaired using pins to hold the pieces of bones together while the finger heals.
Recovery: If treatment measures are adhered to, healing should occur around eight to twelve weeks, which is then followed by a course of rehabilitation therapy to assist in regaining full movement and strength.