Abstract：
De Quervain\'s tenosynovitis is the most common complication after total trapeziometacarpal joint replacement. Etiology is unclear. Implantation of a ball-in-socket implant changes the biomechanics of the normal trapeziometacarpal saddle joint and increases its range of motion. The present study demonstrates that this procedure also significantly increases excursion of the abductor pollicis longus and extensor pollicis brevis tendons during thumb flexion-extension, and not during thumb abduction-adduction. Increased tendon gliding under the retinaculum of the first extensor tendon compartment could predispose to the development frictional tenosynovitis and play a role in the development of de Quervain\'s syndrome after total trapeziometacarpal joint replacement. LEVEL OF EVIDENCE: Not applicable (laboratory study).
摘要：
DeQuervain腱鞘炎是全梯形掌骨关节置换术后最常见的并发症。病因尚不清楚。球窝植入物的植入改变了正常的梯形掌骨鞍关节的生物力学，并增加了其运动范围。本研究表明，该程序还显着增加了拇指屈伸过程中长肌和短肌伸肌肌腱的偏移，而不是在拇指外展内收期间。在第一伸伸肌腱区室的支持带下增加的肌腱滑动可能会导致发展摩擦性腱鞘炎，并在全梯形掌关节置换后的德奎尔文综合征的发展中起作用。证据级别：不适用（实验室研究）。
