The two muscles affected are the extensor pollicis brevis (EPB) and abductor pollicis longus (APL). These muscles lift the thumb and move it out to the side. De Quervain's tenosynovitis occurs ...
The operative technique used a portion of the abductor pollicis longus as a sling, with specific modifications similar to those described by Sigfusson and Lundborg. [17] This is shown ...