Sandwich strategy for the treatment of kyphosis with scoliosis and bilateral hip ankylosis in ankylosing spondylitis: a case report - Takeaways - MDSpire

Sandwich strategy for the treatment of kyphosis with scoliosis and bilateral hip ankylosis in ankylosing spondylitis: a case report

  • By

  • Shihao Hong

  • Zihe Niu

  • Baipan Zhang

  • Pengyu Bao

  • Yu Wang

  • Xin Yang

  • May 29, 2026

  • 0 min

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  • 1

    Ankylosing spondylitis can lead to severe kyphosis, scoliosis, and bilateral hip ankylosis, complicating treatment options.

  • 2

    The staged 'sandwich' protocol involved three surgical stages: right total hip arthroplasty, pedicle subtraction osteotomy, and contralateral total hip arthroplasty.

  • 3

    Postoperative radiographs showed significant improvement in spinal alignment and proper positioning of hip prostheses.

  • 4

    The 'sandwich' strategy follows a biomechanical principle of 'unlock–rebalance–match' to restore mobility and alignment.

  • 5

    This case report highlights a novel approach for managing complex hip-spine syndrome in advanced ankylosing spondylitis.

Original Source(s)

Sandwich strategy for the treatment of kyphosis with scoliosis and bilateral hip ankylosis in ankylosing spondylitis: a case report

  • by Shihao Hong, Zihe Niu, Baipan Zhang, Pengyu Bao, Yu Wang, Xin Yang

  • May 29, 2026

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