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Table 5 Mean pre-op, post-op and final FU values in patients treated with interbody support

From: High grade isthmic spondylolisthesis; can reduction always re-align the unbalanced pelvis?

X-Ray index Pre-op Post-op FU
Listhesis percentage 77,8% (57–98) 23.5% (1–71) 29.5% (5–116)
Lumbar-sacral angle (LSA) −15,8° (− 3 to − 31) 4.7° (− 7 to + 15) 0.6° (− 45 to + 15)
Lumbar lordosis (LL) 60° (37–72) 58,3° (40–72) 56.7° (40–66)
Sacral slope (SS) 43.4° (20–55) 47.2° (19–59) 43.9° (19–59)
Pelvic tilt (PT) 28.3° (17–36) 21.6° (11–38) 24.4° (14–39)
Pelvic incidence (PI) 70,5° (56–86) 69.5° (51–88) 69.8° (51–88)