[Enlargement plasty of the radio-styloid tunnel in the treatment of De Quervain tenosynovitis].

De Quervain disease (1895), tenosynovitis of Abductor Pollicis Longus and Extensor Pollicis Brevis, passing through their tunnel above the Radial Styloid Process, is not always cured by medical treatment but often requires surgical treatment. So, it is necessary to use a surgical one. The classical procedure, simple section of the radio-styloid pulley, is often complicated by the shifting of the two tendons on the radial styloid process caused by the wrist movements. Recently, an Italian author, G. Codega proposed an enlarging-reconstructing technique. The one described in this article consists of enlargement of the pulley by means of a diagonal incision, followed by suture after shifting of the diagonals. This technique ensures a real enlargement and solid reconstruction which allows early rehabilitation. The pain disappears at the same time as post-operative pain. Because of the small number of patients operated to data, it is not yet possible to perform statistical analysis, but the results have always been good or excellent.