Figure 3From: Evaluation of implant loosening following segmental pedicle screw fixation in adolescent idiopathic scoliosis: a 2 year follow-up with low-dose CT Evidence of screw loosening and proximal junctional kyphosis. CT of a 16 years old girl following segmental pedicle screw fixation T2-T12. Sagittal images (A) six weeks, and (B) two years following surgery of the same patient in Figure 2. Beside evidence of loosening, image B shows occurrence of proximal junctional kyphosis above the upper limit of the implant compared with image A.Back to article page