Marie-Strumpell spondylitis

例句：

1. 1. Marie-Strumpell spondylitis is a chronic condition that can cause pain and stiffness in the lower back.
   马里斯特伦病是一种慢性疾病，可以导致下背部疼痛和僵硬。
2. 2. Symptoms of Marie-Strumpell spondylitis include fatigue, muscle weakness, and difficulty walking.
   马里斯特伦病的症状包括疲劳、肌肉无力和行走困难。
3. 3. Treatment for Marie-Strumpell spondylitis typically involves physical therapy, medication, and sometimes surgery.
   治疗马里斯特伦病通常包括物理治疗、药物治疗，有时甚至需要手术。