Fig. 3From: Operative strategies for ankylosing spondylitis-related thoracolumbar kyphosis: focus on the cervical stiffness, coronal imbalance and hip involvementType IIB: TLK-AS with an scoliosis of 20.3° and CSVL of 84 mm. The HP method combined with APSO was used. The photos and radiographs before operation and 36 months later postoperatively were compared and showed a good biplane reconstructionBack to article page