Causes
Most common cause is overuse from chronic repetitive activities using the hand or the involved finger. Examples include work activities (e.g., computer use, materials handling, hand surgeons) or recreational activities (e.g., knitting, golf, racket sports). Recently notable, the repetitive movements while using the controller of video games, has coned the name "Game-Boy Thumb" or from texting "texting tendonitis" when the thumb if affected. Carpenters who use hammers suffer from this as well as those who continuously grip wood or other materials when cutting them due to having to use your hands as a clamp to hold things in place.
Primary stenosing tenosynovitis can be idiopathic, occurring in middle age women more frequently than in men, but can present also in infancy.
Secondary stenosing tenosynovitis, can be caused by disease or entities that causes connective tissue disorders such as:
- Rheumatoid arthritis & psoriatic arthritis, therefore the clinician must assess the hands for rheumatologic deformities and malalignment.
- Gout
- Diabetes Mellitus
- Amyloidosis
- Systemic Lupus Erythematosus
Others:
- Direct trauma to the site
- During postpartum period
- Congenital
Read more about this topic: Stenosing Tenosynovitis