What orthosis is typically used for De Quervain's Tenosynovitis?

What orthosis is typically used for De Quervain's Tenosynovitis?

• A. Wrist cock-up splint
• B. Forearm-based thumb spica
• C. Short wrist splint
• D. Elbow cast

Answer: (B)

De Quervain's Tenosynovitis involves inflammation of the tendons that extend the thumb as they pass through the first dorsal compartment. To relieve pain and promote healing, you want to limit movement of the thumb and the wrist so the affected tendons don’t “glide” as much. A forearm-based thumb spica splint achieves this by immobilizing the wrist and including the thumb, keeping the first dorsal compartment stable and reducing tendon excursion during pinching and gripping. A wrist cock-up splint mainly immobilizes the wrist and may not adequately restrict thumb motion, and a short wrist splint won’t address the thumb tendons at all. An elbow cast is far from the site and not helpful here.

De Quervain's Tenosynovitis involves inflammation of the tendons that extend the thumb as they pass through the first dorsal compartment. To relieve pain and promote healing, you want to limit movement of the thumb and the wrist so the affected tendons don’t “glide” as much. A forearm-based thumb spica splint achieves this by immobilizing the wrist and including the thumb, keeping the first dorsal compartment stable and reducing tendon excursion during pinching and gripping.

A wrist cock-up splint mainly immobilizes the wrist and may not adequately restrict thumb motion, and a short wrist splint won’t address the thumb tendons at all. An elbow cast is far from the site and not helpful here.