Ava Monroe
Trigger finger is a condition that affects the tendons that control finger and thumb movement, resulting in a locking or catching sensation when bending or straightening the digits. It is characterised by pain, stiffness, and swelling in the fingers and thumb, with symptoms typically worsening after periods of inactivity and improving with movement. While the exact cause of trigger finger is unknown, it is associated with repetitive gripping or squeezing actions and certain medical conditions such as diabetes and rheumatoid arthritis. Treatment options include rest, ice and heat therapy, splints, and anti-inflammatory medications, with surgery being considered in severe cases. Although trigger finger can cause significant finger pain and nail technicians are at risk due to the nature of their work, there is no direct evidence linking trigger finger to nail pain.
| Characteristics | Values |
|---|---|
| Symptoms | Pain, stiffness, soreness, a snapping or locking sensation, swelling, a tender or swollen lump in the palm of the hand, inflammation of a tendon, numbness or tingling along the finger, difficulty moving the finger |
| Causes | Repeated movement or forceful use of the finger or thumb, frequent or intense gripping in work or leisure activities, certain medical conditions (e.g. diabetes, rheumatoid arthritis, gout, pseudogout, sarcoidosis, hypothyroidism), genetic predisposition |
| Treatment | Rest, steroid injections, surgery, ice and heat treatment, anti-inflammatory medications, stretching exercises, splints, padded gloves |
| Diagnosis | Physical examination, imaging tests (ultrasound or X-rays) |
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What You'll Learn
Trigger finger diagnosis
Trigger finger is a condition that affects the tendons that flex the fingers and thumb, causing a locking or catching sensation when bending or straightening the digit. The ring finger and thumb are the most commonly affected, although it can affect any digit. The condition is characterised by pain and stiffness in the fingers and thumb, with symptoms typically worse in the morning or after periods of inactivity.
Diagnosis of trigger finger is primarily clinical, and a healthcare provider will usually diagnose it through a physical examination. They will examine the hand and fingers and ask about the patient's symptoms, including when the pain and stiffness started and any activities that make the symptoms worse. The provider may also straighten the patient's fingers to feel for clicking and gauge tendon stiffness. Imaging tests such as ultrasounds or X-rays are not typically required, but they can be used to rule out other conditions.
The treatment for trigger finger depends on the severity of the symptoms and the affected finger. Non-surgical treatments are usually the first line of treatment and include rest, ice and heat therapy, splinting, and anti-inflammatory medications. Steroid injections into the tendon sheath are another effective and less invasive treatment option. However, surgery may be recommended if conservative treatments are ineffective or if the finger is stuck in a bent position and cannot be straightened manually.
While trigger finger can cause significant pain and impair hand function, the prognosis is generally favourable with appropriate treatment. Most patients recover within a few weeks, but full recovery, including the resolution of swelling and stiffness, may take up to six months. Hand therapy may be recommended if stiffness, swelling, or pain persist after surgery.
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Treatment options
Rest
Taking a break from work, hobbies, or tasks that cause trigger finger will give the tendons time to heal.
Splints
Strapping the affected finger or thumb to a plastic splint can ease symptoms by stopping the finger from moving. If the finger is particularly stiff in the morning, it may be helpful to use a splint overnight.
Stretching exercises
Gentle moves may ease stiffness and improve the range of motion. A certified hand therapist can teach patients appropriate exercises, such as wrist stretches and fingertip bends.
Hot and cold treatment
Alternating between icing the area and applying heat can help with pain and swelling.
Non-steroidal anti-inflammatory drugs (NSAIDs)
Over-the-counter anti-inflammatory medicines, such as ibuprofen or naproxen, can be used to relieve pain.
Steroid injections
Injecting liquid corticosteroids into the base of the affected finger or thumb can reduce swelling and allow the tendon to move freely again. This treatment is estimated to be effective for 50 to 70% of people with trigger finger. However, it is generally less effective for patients with certain underlying health conditions, such as diabetes and rheumatoid arthritis.
Surgery
If other treatments are ineffective or unsuitable, surgery may be recommended. The surgeon will cut through the affected section of the tendon sheath so that the tendon can move freely again.
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Exercises to alleviate pain
Trigger finger is a condition that affects the tendons that flex the fingers and thumb, causing a locking or catching sensation when bending or straightening them. It can result in pain, stiffness, and limited mobility, with symptoms typically worsening in the morning or when performing gripping actions.
To alleviate trigger finger symptoms, doctors and physical therapists recommend various exercises and self-care methods:
Stretching and Flexibility Exercises:
- Finger bending: Hold the finger just below the top joint and bend the tip while keeping the rest of the finger still.
- Tip and middle joint bend: Hold the finger above the knuckle and bend the tip and middle joints while keeping the rest of the finger still, then unbend.
- Passive wrist stretch: This involves stretching the wrist gently.
- Finger spreading and bending: Spread your fingers wide, bend them to touch the top of your palm, straighten them, and repeat the process for the middle and bottom of your palm.
- Thumb movement: Place your thumb upright and gently draw it back.
- Resistance exercises: Use rubber bands to provide resistance as you move your thumb and fingers towards and away from the centre of your hand.
- Extensor exercises: Place your hand on a flat surface with your palm facing down, and gently lift and lower each finger and thumb individually.
Massage:
Gently massage the affected finger, thumb, hand, wrist, and forearm in circular motions with gentle pressure. You can also press and hold specific points for 30 seconds. Massaging improves circulation, flexibility, and range of motion.
Heat Therapy:
Apply heat to the affected area using a heating pad or soak the finger in warm water to alleviate stiffness and pain. Heat improves blood flow and reduces inflammation.
It is important to perform these exercises consistently and for at least 10–15 minutes per day. If symptoms persist or worsen, consult a doctor, as further treatment options, such as steroid injections or surgery, may be necessary.
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Risk factors
Trigger finger is a condition that affects the tendons that flex the fingers and thumb, causing a locking or catching sensation when bending or straightening the digits. While the exact cause of trigger finger is unknown, several risk factors have been identified that increase the likelihood of developing this condition.
Medical Conditions
People with certain medical conditions are more prone to developing trigger finger. These conditions include diabetes, rheumatoid arthritis, gout, pseudogout, sarcoidosis, and hypothyroidism. Between 5% and 20% of individuals with diabetes will develop trigger finger.
Repetitive Movements
Occupations or hobbies that involve repetitive movements, such as gripping, lifting, and squeezing, are common risk factors. This includes jobs like gardening, using power tools, or even gripping bicycle handlebars. Nail technicians, in particular, are at risk due to the nature of their work, which involves a lot of gripping and repetitive motions.
Age and Gender
Trigger finger most commonly affects individuals between the ages of 40 and 60, with a higher prevalence in women compared to men.
Genetics
There is some evidence to suggest that a person's genetic makeup may play a role in their susceptibility to trigger finger. Some people may have a genetic predisposition to developing the condition.
Inflammatory Disorders
Individuals with inflammatory disorders, such as rheumatoid arthritis, gout, or sarcoidosis, are at a higher risk of developing trigger finger.
It is important to note that while these are identified risk factors, the development of trigger finger can sometimes be unpredictable, and in some cases, the cause may be unknown.
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Impact on daily life
Trigger finger can have a significant impact on daily life, making even the simplest of tasks tedious and challenging. The condition causes pain and stiffness in the fingers and thumb, with symptoms typically worse in the morning and when gripping or grasping objects. This can make it difficult to perform basic activities such as typing, buttoning a shirt, or unlocking a door. Those affected may also experience trouble holding tools or gripping a steering wheel.
The pain and stiffness associated with trigger finger can interfere with everyday activities, affecting work, hobbies, and routine tasks. The condition is caused by swelling or thickening of the tendon or tendon sheath in the fingers or thumb, resulting in restricted movement. This inflammation can make it challenging to bend or straighten the fingers, with severe cases leading to the finger locking in a bent position. The need to manually straighten the finger with the other hand can be cumbersome and disrupt daily routines.
The impact of trigger finger on daily life can be mitigated through various treatments. Resting the affected hand and avoiding activities that aggravate the condition can help alleviate symptoms. Applying ice or heat to the affected area, as well as using padded gloves, can provide relief. Additionally, anti-inflammatory medications, such as ibuprofen or naproxen, can help reduce tendon swelling. Simple exercises and stretching routines may also improve flexibility and alleviate discomfort.
In more severe cases of trigger finger, surgery may be recommended to prevent permanent stiffness and restore finger function. While surgery is generally effective, it may lead to complications such as pain and swelling in the hand, which can further impact daily activities. Most patients experience significant improvement after surgery, but full recovery can take several months. During this time, individuals may need to wear a splint and undergo physical therapy to regain finger flexibility and movement.
The impact of trigger finger on daily life can vary depending on the severity of the condition and the effectiveness of treatment. While it can cause significant discomfort and hinder basic tasks, proper management and adherence to recommended treatments can help alleviate symptoms and improve overall hand function. Seeking medical advice and early intervention are crucial for minimizing the impact of trigger finger on daily life.
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Frequently asked questions
Trigger finger is a condition affecting tendons that flex the fingers and thumb, typically resulting in a sensation of locking or catching when you bend and straighten your digits. It is caused by the thickening of a ligament at the base of the finger.
Trigger finger can cause pain in the palm just before the point where the finger or thumb attaches to the rest of the hand. This pain can be felt in the palm near the base of the fingers or thumb and can be worse when gripping or grasping something. Therefore, it is possible for it to cause nail pain.
Treatment for trigger finger depends on the severity of the symptoms. Most treatments involve rest, ice and heat therapy, splints, and anti-inflammatory medications. In more severe cases, surgery may be required.
