articular calcification

例句：

1. 1. The patient's condition worsened after the surgery.
   手术后，患者的病情恶化了。
2. 2.Arthritis is a chronic condition that affects joints.
   关节炎是一种慢性疾病，影响关节。
3. 3. The doctor prescribed medication to treat the patient's arthritis.
   医生开了药来治疗患者的关节炎。