TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A specific type of tenosynovitis which involves the tendons of two specific muscles on the thumb side of the hand - the abductor pollicis longus (APL) and the extensor pollicis brevis (EPB). These muscles are located in the forearm and their tendons travel across the wrist (through a "tunnel" termed the first dorsal compartment) on the thumb side to produce movement of the thumb. The walls of the affected tendon sheaths (basically protective coverings for the tendons) become thickened and inflamed.  3, record 1, English, - de%20Quervain%27s%20tenosynovitis

Record number: 1, Textual support number: 1 OBS

The precise cause of de Quervain's tenosynovitis is unknown. It is thought that excessive friction from overuse of the thumb and wrist (excessive and repetitive gripping and grasping actions) may be a factor, leading to thickening of the tissues in the compartment housing the APL and EPB tendons. For example, cases have been described in bricklayers, those who sew, piano players, fly fishermen, and golfers. It has also been hypothesized that the condition in some cases may be associated with acute injury to the involved area (direct blow to the forearm or wrist, falling on the thumb).  3, record 1, English, - de%20Quervain%27s%20tenosynovitis

Record number: 1, Textual support number: 2 OBS

blackberry thumb: Experts caution that practical experience and emerging anecdotal evidence suggest overuse of personal digital assistants (PDAs) ... can conceivably lead to injury of the tendons and accompanying tissue of the thumb. "Blackberry thumb" is the latest colloquial interpretation of a very real medical condition called de Quervain's tendonitis, and its variant de Quervain's tenosynovitis. The names refer to inflammation of two tendons that control the opposable digit, or their protective tissue.  2, record 1, English, - de%20Quervain%27s%20tenosynovitis

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Inflammation de la gaine entourant les tendons du long abducteur et du court extenseur du pouce (ténosynovite) qui cheminent tous deux dans le même tunnel fibreux, au bord externe du poignet, au contact du radius.  1, record 1, French, - t%C3%A9nosynovite%20de%20de%20Quervain

Record 1,  Textual support,  Spanish