Fig. 3From: Proximal junctional fractures after long-segment instrumented fusion: comparisons between upper instrumented vertebrae and upper instrumented vertebrae + 1This figure demonstrated radiographic parameters on a whole spine lateral radiograph. LL lumbar lordosis, PI pelvic incidence, PLK proximal local kyphosis, PT pelvic tilt, SS sacral slope, SVA sagittal vertical axisBack to article page