Wrist & Hand / de Quervain’s Disease
de Quervain’s Tenosynovitis / Tendinitis
The tendons pass to the thumb via a tight sheath (tunnel) as it crosses the wrist joint. The sheath is formed of tough ligament and lined by tenosynovium that allows the tendons to glide. de Quervain’s tenosynotitis is due to inflammation of the lining of the tendon sheath and results in thickening of a small segment of the sheath.