A low-profile dynamic wrist splint has been designed for use by patients who have undergone simultaneous de Quervain's release and basal joint arthroplasty. The splint allows gentle postoperative gliding of the abductor pollicis longus (APL) and extensor pollicis brevis (EPB) tendons while stabilizing the basal joint arthroplasty. Excursion of APL and EPB tendons over the basal joint area is vital to prevent adherence of the tendons or the superficial radial sensory nerve in this area. The splint is for daytime use only. A forearmbased thumb spica splint should be used at night and during high-risk activities . The splint may be placed as early as 24 hours postoperatively .