Trigger Fingers


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Trigger finger will cause a catching of the finger. The finger can get stuck in a bent or flexed position and can be quite painful to unlock. The ring finger is often involved.


TriggerFinger1

Normal appearance of the flexor tendon and sheaths. There is no swelling. This allows the tendon to glide smoothly through these pulleys.



TriggerFinger2

This shows the abnormal anatomy in a trgger finger. The tendon has a swelling in front of the first pulley. This causes the pulley to get inflammed and swollen as well. This, in turn, causes the tendon to get caught, and then suddenly "pops through" the pulley, causing the typical triggering that occurs in a trigger finger.




This is a trigger finger operation video presented by the American Society for Surgery of the Hand





Santa Rosa Hand 2015