De Quervains disease is tenosynovitis of:
Ref. Textbook of Orthopedics, Ebnezar. Page. 378.
 
De Quervains TenoSynovitis

A stenosing tenosynovial inflammation of the 1st dorsal compartment which includes
	
abductor pollicis longus (APL) 
extensor pollicis brevis (EPB) 


Epidemiology
	
Woman > men
30 - 50 years old
Most commonly in the dominant wrist


Pathophysiology
	
Thickening and swelling of extensor retinaculum causes increased tendon friction
NOT considered an inflammatory process


Prognosis
	
Most cases resolve with non-operative management
 High recurrence rate