De Quervain's tenosynovitis


 

What is De Quervain's tenosynovitis?


De Quervain's tenosynovitis
De Quervain's tenosynovitis

De Quervain's is an inflammation in the abductor policis longus and extensor policis brevis muscle tendon.

 

Why does it happen?



De Quervain's tenosynovitis and phone
De Quervain's tenosynovitis and phone


The two muscles mentioned above lengthens when we move our thumb inward, towards the palm. Tendons don't like being stretched, but we live in a era where phones and computers are widely used. Overtime, these two muscles become more vulnerable to damage because they are stretched and constantly put under friction by the retinaculum of our wrist.




Females, especially after birth are more prone to developing De Quervain's tenosynovitis because their body produces relaxin, which makes the ligaments in the wrist looser. Loosened ligaments will make the muscles around the wrist work harder, therefore more vulnerable to developing De Quervain's tenosynovitis.


 

How do we know if it is De Quervain's tenosynovitis?



For physical examination, therapists normally use the Finkelstein's test to confirm whether the patients have De Quervain's tenosynovitis.



For image investigation, patients may receive ultrasound imaging to confirm if there is an inflammation in the muscles mentioned above in the wrist.

 

How do we treat De Quervain's tenosynovitis?



wrist brace
wrist brace


Evidence suggests corticosteroid injection + brace for 4-6 weeks.


Evidence does not suggest stretching, because it may aggravate the condition.


You can also see a physician to release the opposing muscles and work through rehabilitation exercises on the hand.









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