Dorsally, the starting point is just proximal to the standard 3-4 radiocarpal arthroscopy portal.

背路时，进点刚好接近于标准桡腕关3-4号处。

Arthroscopy could be recommended to those who haven't got good results by arthrocentesis or those who have already had some sequelae, such as TMJ fibrous ankylosis.

对一些灌洗治疗无效或有后遗症的患者，关手术有优异的疗效。