What Is a Trigger Finger Injection?

A trigger finger injection is a medical treatment that alleviates the pain and discomfort associated with stenosing tenosynovitis (trigger finger), in which a finger or thumb gets stuck in a bent position. The injection typically contains a corticosteroid, reducing inflammation and swelling within the tendon sheath, which impedes smooth tendon motion.

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How Are Trigger Finger Injections Performed?

The procedure is quick and usually done in an outpatient setting. After cleaning the injection site, a local anesthetic may be applied to minimize discomfort. Then, using a fine needle, the doctor injects a corticosteroid directly into the tendon sheath of the affected finger or thumb. The goal is to reduce inflammation and swelling, allowing the tendon to glide more freely.

The corticosteroid’s primary therapeutic goal is to relieve trigger finger pain and restore normal movement in the affected digit. It can also serve a diagnostic purpose, as improvement after the injection confirms that inflammation within the tendon sheath is the source of dysfunction.

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Pre-Op and Post-Op Instructions

PRE-OP

  • Ensure transportation arrangements post-procedure if you have concerns about using your hand immediately afterward.
  • Discuss all your current medications with your physician, as adjustments may be necessary, especially if you’re on blood thinners.
  • Diabetic patients should monitor their blood sugar closely, as corticosteroids can affect glucose levels.
  • Report any signs of infection or skin conditions near the affected area, as the procedure may need to be postponed.

POST-OP

  • Rest the injected finger and avoid strenuous activities with the hand for at least 24 to 48 hours.
  • Apply ice to the area if you experience minor swelling or discomfort, but avoid direct pressure on the injection site.
  • Monitor the injection site for signs of infection or adverse reactions, and contact your physician if concerns arise.
  • Follow-up appointments may be necessary to assess the effectiveness of the injection and discuss repeated injections or surgery for persistent cases.

Next Steps After Tendon Injections

If symptoms persist or return after the initial relief from the injection, additional injections may be considered. Based on the severity of the condition and the response to initial treatments, other treatment options, including physical therapy or minimally invasive hand surgery, may be discussed.

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Trigger Finger Injections FAQ

How effective are trigger finger injections?

Is the injection procedure painful?

How long does relief from a trigger finger injection last?

How many injections will I need?

What are the risks and side effects of trigger finger injections?

Who is a good candidate for trigger finger injections?

What should I expect after the injection?

How effective are trigger finger injections?

Trigger finger injections are generally effective in relieving symptoms, especially in the early stages of the condition. Many patients experience significant improvement within a few days to weeks after the injection, with reduced pain and improved finger mobility. However, the effectiveness can vary depending on the severity of the condition and individual response to the treatment.

Is the injection procedure painful?

Most patients tolerate the injection procedure well. A local anesthetic may numb the area before the injection, minimizing discomfort. Some patients may experience mild pain or pressure during the injection, but this typically subsides quickly. Temporary soreness at the injection site is common but usually resolves within a day or two.

How long does relief from a trigger finger injection last?

The duration of relief from a trigger finger injection can vary. Some patients may experience relief for several months or longer, while others may require additional treatments if symptoms recur. In cases where the injection provides only temporary relief, further treatment options, including surgery, may be considered.

How many injections will I need?

In many cases, a single injection is sufficient to relieve symptoms. However, if symptoms return or the initial injection does not provide adequate relief, your physician may recommend a second injection. It’s important to follow your physician’s advice regarding the number of injections and the timing of any follow-up treatments.

What are the risks and side effects of trigger finger injections?

While trigger finger injections are generally safe, there are some potential risks and side effects. These may include temporary pain or swelling at the injection site, infection, or, in rare cases, weakening of the tendon if corticosteroids are used frequently. Your physician will discuss these risks before the procedure and take precautions to minimize complications.

Who is a good candidate for trigger finger injections?

Trigger finger injections are typically recommended for individuals experiencing pain, stiffness, or locking of the fingers that have not responded to conservative treatments like rest, splinting, or oral medications. A thorough evaluation by your physician will help determine if this treatment is appropriate for your specific condition.

What should I expect after the injection?

After the injection, you may experience some immediate relief, although the full effects may take a few days to become noticeable. Resting the affected finger and avoiding activities that strain it for a few days following the injection is advisable. Your physician will provide specific post-injection care instructions and may schedule a follow-up appointment to assess the success of the treatment.

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