May 24, 2017
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Trigger Finger (Stenosing Tenosynovitis)

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What is trigger finger?

Trigger finger is a "snapping" or "locking" condition of any of the digits of the hand when opened or closed. Trigger finger is medically termed stenosing tenosynovitis.

What causes trigger finger?

Trigger finger is caused by local swelling from inflammation or scarring of the tendon sheath around the flexor tendons. These are tendons that normally pull the affected digit inward toward the palm (flexion).

What are risk factors for trigger finger?

Usually, trigger finger occurs as an isolated condition because of repetitive trauma. Activities such as gardening, pruning, and clipping, etc., are risk factors for trigger finger. Sometimes, trigger finger is an associated condition resulting from an underlying illness that causes inflammation of tissues of the hand, such as rheumatoid arthritis. In fact, data presented at the 2005 American College of Rheumatology national meeting suggested that a majority of patients with rheumatoid arthritis have inflammation around the tendons of the palm of the hand that could develop into trigger finger.

Medically Reviewed by a Doctor on 8/10/2016

Source: MedicineNet.com
http://www.medicinenet.com/trigger_finger/article.htm

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