Fig. 2From: Proximal junctional fractures after long-segment instrumented fusion: comparisons between upper instrumented vertebrae and upper instrumented vertebrae + 1A case in the UIV + 1 group: A the patient who underwent L2-S1 instrumented fusion, B fracture at upper instrumented vertebrae + 1 (L1) was developed 18 months later, C computed tomography showed L1 fracture, D L1 vertebroplasty was performedBack to article page