piriformis muscle

例句：

1. 1. The patient's conditionworsened after the surgery.
   手术后，患者的病情恶化了。
2. 2. The doctor advised the patient toexercise regularly to prevent further damage to thepiriformis muscle.
   医生建议患者定期锻炼，以防止梨状肌进一步受损。
3. 3.The patient was unable to walk without painin the piriformis muscle.
   患者无法在没有疼痛的情况下行走，因为梨状肌受到了损伤。