This injury can cause deformity and inability to straighten the finger.

INJURY
Extensor Tendon Injury

ALSO KNOWN AS
Mallet Finger or Baseball Finger

ABOUT
The extensor tendon, which allows you to straighten your fingers or thumb, is damaged by force at the tip. This injury can cause deformity and inability to straighten the finger.

COMMON INJURY
Caused by blunt force to the top of the finger.

DIAGNOSIS
X-rays may be ordered by your physician to confirm that there isn’t a fracture of the bone or damage to the joint. The finger is usually swollen and bruised and cannot be straightened.

NON SURGICAL TREATMENT
The injury should be iced, elevated and put into a splint to hold the finger (tendon) straight. In children it should be monitored more closely so that the finger growth isn’t stunted.

SURGICAL TREATMENT
Only in the event that there is a fracture will surgery be required.

Extensor Tendon Injury
The flexor tendons allow you to bend your fingers.
Image courtesy of AAOS