De Quervain’s Tenosynovitis
De Quervain’s tenosynovitis is the most common entrapment tendonitis of hand and wrist after trigger finger. It is most commonly seen in women between 30 and 50 years of age. It refers to entrapment tendonitis/tenosynovitis of the abductor pollicis longus and extensor pollicis brevis tendons at the styloid process of the radius. It is most often a cumulative movement disorder due to chronic overuse of the wrist and hand. Bilateral or unilateral tenosynovitis may also accompany pregnancy, direct trauma, and systemic diseases such as rheumatoid arthritis and calcium apatite deposition disease.