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Finger Injuries (cont.)

Finger Injuries Medical Treatment

Pain management

Before treating the injury, the doctor may numb the tissue with a local anesthetic such as lidocaine. This is usually done by injecting an anesthetic near the base of the finger, called a "digital block".

  • A digital block is done with a small amount of lidocaine placed on either side of the base of the finger where the main branch of the nerve is located. This provides anesthesia (numbing) to the entire finger with a minimum amount of needle shots and pain.

The patient may also be given pain medications by mouth or through an IV.

Open wounds

  • If the patient has an open wound such as a laceration or an avulsion, the doctor may want to explore the wound more carefully to assess the damage or to remove foreign bodies.
  • The wound will then be thoroughly washed.
  • The nail bed, tendons, or other deep structures are sometimes sutured (stitches sewn to close the wound) with absorbable (dissolving) thread.
  • Thread used to close the skin usually does not absorb, and stitches will need to be removed in one to two weeks.
  • Some wounds are temporarily closed with loose stitches until the patient can be seen by a hand surgery specialist in a day or two.

Avulsions and amputations

  • The separated tissue may be able to be reattached to the finger.
  • A piece of tissue that is very small, is severely damaged, or has been separated for a long period may not be salvageable. Reattachment of amputations closer to the base of the finger (more proximal), especially ones that include the middle part or base of the finger, are more likely to be attempted by the hand surgeon.
  • Skin grafting is used in some cases where a large piece of skin is missing.

Subungal Hematoma

A large (>50% of nail surface) or very painful patch of blood can be drained from under the nail by "trephination."

  • Trephination is done by boring a few holes in the nail to relieve the pressure and drain the blood. This can be done with a red-hot cautery device (a heated metal probe), a needle twisted through the nail, or a small drill device.


  • This infection of the lateral nail fold is drained by putting a small incision in the skin overlying the infected area. It is then cleaned, and antibiotics are placed on it. Depending on the severity of the infection, the patient may need oral antibiotics.

Fractures and dislocations

  • Reduction (realignment) of broken or dislocated bones usually takes place in the emergency department under local anesthesia.
  • After the bone is put back into place, the doctor may perform more X-rays to make sure the bones are realigned, then a splint is applied.
  • Some fractures and dislocations require surgery to repair.


  • Fractures, dislocations, tendon injuries, and some lacerations may be treated by splinting part of the finger or even the whole hand or wrist.
  • This splinting allows the tissues to rest and therefore heal faster.


  • Some wounds are at higher risk of infection than others and may be treated with antibiotics.
  • If the doctor prescribes antibiotics, it is very important the patient take the medication as directed and finishes the whole prescription even if the patient feels fine.

Referral to a hand specialist

  • Certain fractures, tendon lacerations, amputations, and other injuries may be referred to a hand specialist for treatment or for follow-up.
Medically Reviewed by a Doctor on 3/3/2015

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