halo-pelvic distraction

例句：

1. 1.The patient underwent a halo-pelvic distraction procedure to treat her back pain.
   患者接受了骨盆牵引术来治疗她的背痛。
2. 2.During the surgery, the surgeon used a halo-pelvic distraction device to distract the vertebrae.
   在手术中，外科医生使用了一个骨盆牵引装置来分散脊椎。
3. 3. The halo-pelvic distraction technique is effective in reducing pain and improving mobility for patients with spinal injuries.
   骨盆牵引技术对于脊柱损伤的患者来说，能有效减轻疼痛并改善活动能力。