Fig. 1From: Treatment of kyphosis in ankylosing spondylitis by osteotomy through the gap of a pathological fracture: a retrospective studyPreoperative imaging findings of a 47-year-old female patient with ankylosing spondylitis. a, b Photographs show a kyphotic deformity, with the patient having difficulty in holding the head up straight. c, d Radiographs show the thoracolumbar kyphotic deformity, with a pathological fracture located at L1. e MRI image shows destruction of bone and compression of spinal cord. f, g CT images show the pathological fracture at L1Back to article page