Conclusion The arthroscopy is helpful to the diagnosis and treatment of synovial chondromatosis of the knee with microinvasion and quick rehabilitation.

• 结论关节镜有手术创伤小，恢复快和病变滑膜切除彻底等优点，是膝关节滑膜软骨瘤病的有效诊断和治疗方法。