结果患者髌骨不稳定。
术后髌骨不稳定和半脱位的发生率无统计学差异。
No statistically significant difference in occurrence of patellar instability and subluxation in both procedures.
目的：探讨关节镜指导下诊断及治疗髌骨不稳定的手术方法和临床疗效。
Objective to explore the operation method in treating patellar instability guided by arthroscopy and to evaluate its therapeutic effects.
髌骨不稳是一种常见的髌股关节疾患，指膝关节伸曲活动时髌骨发生外倾或外移程度加大。
Patella instability is a kind of common patellofemora disease, it refers to the degree of patella extraversion or moving outward increases when the knee-joint extend and flex.
本文还探讨了髌股关节疼痛综合症中髌骨运动中的生物力学、髌骨稳定因素、发生不稳定的可能机制以及治疗方法。
It is also discussed that biomechanics of patellar motion, factors influencing patellar stability, as well as mechanism and therapy of instability in the patellofemoral pain syndrome.
目的：了解组成股四头肌的4块肌在维持髌骨稳定性中的作用，为临床治疗髌股关节不稳提供理论依据。
Objective:To understand the contribution of the 4 muscles of the quadriceps femoris, and to provide a theoretical basis for clinical treatment of instability of the patellofemoral joint.
目的：了解组成股四头肌的4块肌在维持髌骨稳定性中的作用，为临床治疗髌股关节不稳提供理论依据。
Objective:To understand the contribution of the 4 muscles of the quadriceps femoris, and to provide a theoretical basis for clinical treatment of instability of the patellofemoral joint.
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