patellar jerk

例句：

1. 1. The patient had a severe knee pain and was diagnosed with patellar twitch.
   患者患有严重的膝关节疼痛，被诊断为髌骨痉挛。
2. 2.During the game, the player experienced a sudden patellar twitch, causing him to lose his balance.
   比赛中，球员突然感到一阵髌骨痉挛，导致他失去平衡。
3. 3. After the surgery, the patient experienced a patellar twitch during the recovery period, which required additional treatment.
   手术后，患者在康复期间经历了一阵髌骨痉挛，需要额外的治疗。