在正常的髌股关节中，髌骨的活动轨迹应处于滑车沟的中心。
For a congruent patellofemoral articulation, the patella must track centrally in the trochlear groove.
一些外科手术用来治疗严重退变的髌股关节，伴不同程度的成功。
Several surgical procedures have been used to treat the severely degenerated patellofemoral joint, with varying degrees of success.
髌股关节紊乱，以膝前痛为主要症状，是临床和体育运动中常见的膝关节疾患。
Patellar joint disorder, with knee anterior pain as the main symptom, is a common knee joint disease occurring in clinic and exercise.
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