About Mallet Finger

Overview

Mallet finger, also known as baseball finger, is an injury that affects the tendon responsible for straightening the tip of the finger or thumb. The injury causes the affected finger to droop at the tip and appear bruised and swollen. People with mallet finger experience difficulty in straightening their finger and may feel pain. It occurs when the tendon becomes torn or detached from the finger bone, and in some cases, a bone fragment may also detach, leading to fracture.

Prompt medical treatment is important, especially for children, to prevent permanent deformities. Treatment options include wearing a splint to keep the finger or thumb straight during recovery. Surgery may be necessary if the tendon pulls off part of the bone. Mallet finger is a common injury, often occurring during activities like playing baseball or catching a ball.

Causes and Risk Factors

Mallet finger is typically caused by an injury that affects the extensor tendon in the finger. The forceful impact on the fingertip can stretch or tear the tendon, leading to the characteristic drooping of the top of the finger. In some cases, this injury can also cause a fracture, where a piece of bone is pulled away along with the torn tendon.

Non-modifiable risk factors are factors that cannot be controlled to reduce the risk of developing the condition. For mallet finger, non-modifiable risk factors include:

  • Age: Increasing age may increase the risk of mallet finger due to weaker joints and tendons
  • Genetic predispositions: Positive family history of mallet finger or other related hand injuries may increase the risk.
  • Previous history of hand injuries: Having a history of previous hand injuries, such as fractures or dislocations, may increase the risk.

Modifiable risk factors are risk factors that can be changed or influenced. Modifiable risk factors for mallet finger include:

  • Occupational hazards: Certain occupations that involve repetitive hand movements or increased risk of trauma may contribute to the risk.
  • Sports activities: Participating in sports that involve ball-handling or potential finger trauma can increase the risk.
  • Lack of protective measures: Not using appropriate protective gear, such as gloves or finger guards, during activities with a high risk of finger injury may increase the likelihood.

It's important to note that these risk factors can vary from person to person, and individual circumstances may influence their impact. To better understand your specific situation and reduce your risk, it's always advisable to consult with a healthcare professional.

Symptoms

The most common symptoms of mallet finger include:

  • Drooping of the tip of the finger or thumb
  • Inability to straighten the fingertip without assistance
  • Pain at the site of the injury
  • Swelling and bruising
  • Sharp pain

As mallet finger progresses or becomes more severe, additional symptoms may occur, such as:

  • Redness and tenderness
  • Limited range of motion in the affected finger
  • Discoloration and detachment of the nail, if the injury also affects the nail bed
  • Risk of infection if there is an open wound

It's important to seek medical help as soon as possible if you experience these symptoms to ensure proper diagnosis and treatment.

Diagnosis

To diagnose mallet finger, the following examinations, tests, and procedures are commonly performed:

  • Physical examination: Your doctor will examine your finger to assess for any deformity or loss of movement.
  • X-ray: This imaging test can show if there is a rupture of the tendon, any bone fracture, or misalignment of the bone.
  • Ultrasound: High-frequency ultrasound can provide detailed images of the extensor tendon and help evaluate its integrity.
  • Magnetic resonance imaging (MRI): MRI can also be used to assess the extent of tendon injury and bone fragments involved.

It's important to consult with your healthcare professional for a proper diagnosis and to determine the appropriate course of treatment.

Treatment Options

The goals of treatment for mallet finger are as follows:

  • Reestablishing stability of the finger joint: The primary aim is to restore stability and bring the joint back to its normal position. This can be achieved through various treatment options.
  • Repairing the fracture or tendon rupture: If the mallet finger involves a broken bone, surgery might be needed to fix the broken bone fragments. If the injury is to the tendon, it can often be treated without surgery, allowing the tendon to naturally reattach with the help of a splint.
  • Restoring function of the extensor tendon: Treatment focus on restoring the balance between bending and straightening the finger by helping the extensor tendon heal and work properly again.

To achieve these treatment goals, the following approaches may be recommended:

  • Splinting: Splinting is the first-line treatment for mallet finger. It involves immobilizing the affected finger in a splint for at least six weeks, allowing the tendon or fracture to heal properly.
  • Medication: Nonsteroidal anti-inflammatory drugs (NSAIDs) may be used to manage pain and swelling associated with the injury.
  • Health behavior changes: It is advised to elevate the hand above heart level and apply ice initially to reduce pain and swelling.
  • Surgical intervention: In cases where there is a significant fracture or tendon rupture, surgery may be necessary to realign and fix the bone fragments or reattach the tendon.

Remember, treatment approaches may vary depending on the severity and type of mallet finger injury. It is crucial to consult with a healthcare professional for an accurate diagnosis and appropriate treatment plan.

Medication dosing may be affected by many factors. Check with your healthcare professional about dosing for your individual situation. Other side effects can occur. Check with your healthcare professional or read the information provided with your medication for additional side effect information.