Mallet finger

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A mallet finger, also known as hammer finger, is an extensor tendon injury at the farthest away finger joint. This results in the inability to extend the finger tip without pushing it. There is generally pain and bruising at the back side of the farthest away finger joint.

A mallet finger usually results from over bending of the finger tip. Typically this occurs when a ball hits an outstretched finger and jams it. This results in either a tear of the tendon or the tendon pulling off a bit of bone. The diagnosis is generally based on symptoms and supported by X-rays.

Treatment is generally with a splint that holds the finger straight continuously for 8 weeks. This should be begun within a week of the injury. If the finger is bent during these weeks, healing may take longer. If a large piece of bone has been torn off surgery may be recommended. Without proper treatment a permanent deformity of the finger may occur.

Video Mallet finger

Diagnosis

The diagnosis is generally based on symptoms and supported by X-rays.

Maps Mallet finger

Treatment

Treatment is generally with a splint that holds the finger straight continuously for 8 weeks. This should begin within a week of the injury. The splint may be worn just at night for a few additional weeks after this.

Surgery generally does not improve outcomes. It may be required if the finger cannot be straightened by pushing on it or the break has pulled off more than 30% of the joint surface. If the problem has been present a long time surgery may also be required. An open fracture may be another reason. Surgery will put the finger in a neutral position and drill a wire through the DIP to the PIP, forcing immobilization.

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See also

• Busch fracture

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References

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External links

Source of article : Wikipedia

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