Trigger Finger
What is Trigger finger?
Trigger Finger (Stenosing Tenosynovitis) is a condition where one of your fingers or thumb gets stuck in a bent position and may snap straight suddenly, like a trigger being pulled and released. This occurs due to inflammation of the flexor tendons that control finger movement.
Mechanism of Injury:
Trigger finger usually develops from repetitive gripping, strain, or overuse of the fingers. It can also be associated with conditions like diabetes and rheumatoid arthritis, which cause the tendon sheath (protective covering around the tendon) to become thickened and restrict smooth tendon movement.
Symptoms
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Finger Stiffness: Particularly in the morning or after periods of inactivity.
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Pain: At the base of the affected finger or thumb, especially when bending or straightening the finger.
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Clicking or Popping: A sensation when moving the finger, sometimes accompanied by an audible pop.
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Tenderness: In the palm at the base of the affected finger or thumb.
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Locking: The finger may lock in a bent position and then suddenly straighten.
Treatment
Immediate Treatment:
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Rest: Avoid activities that require repetitive gripping or forceful finger movements.
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Splinting: Use a splint to keep the finger in a straight position, especially at night, to prevent locking.
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Pain Relief: NSAIDs like ibuprofen to manage pain and reduce inflammation.
Clinical Treatment:
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Manual Therapy: Gentle massage and mobilisation techniques to reduce tension and improve blood flow in the affected area.
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Ultrasound Therapy: Helps to reduce inflammation and promote tendon healing.
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Dry Needling: May be used to release tension in the muscles around the tendon.
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Corticosteroid Injections: Directly into the tendon sheath to reduce inflammation and relieve symptoms.
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Rehabilitation Plans:
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Stretching Exercises: To maintain flexibility in the affected finger.
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Strengthening Exercises: To improve tendon strength and function, reducing the likelihood of recurrence.
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Grip Modifications: Ergonomic adjustments to reduce strain on the tendons during daily activities.
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