Optimal Correction of Adult Spinal Deformities Requires Restoration of Distal Lumbar Lordosis

Figure 2

Clinical example of a patient form the “not aligned” group with a high PI. Revision case, T3-S2 posterior fixation, L3 grade 3 osteotomy. Preoperative measurements (left) were PI = 59°, PT = 34°, PI-LL = 32°, LL = −27°, TK = 3°, and SVA = 93 mm. One-year measurements (right) were PT = 25°, PI-LL = 15°, LL = −44°, PLL = −29°, DLL = −15°, TK = 36°, and SVA = 91 mm.