Tenosynovitis also known as De Quervan’s tendonitis is an inflammation of the tendons at the base of your thumb.  Tenosyno…what, you may say.  What a mouthful.  To explain this, lets take apart this word.  ‘Teno’ is short for tendons.  Tendons are ropes, which tie muscles to bones.  In this case these tendons are at the […]