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Table 3 Comparison of spine-pelvis sagittal parameters

From: Comparative analysis of the effects of OLIF and TLIF on adjacent segments after treatment of L4 degenerative lumbar spondylolisthesis

  OLIF group (n = 36) TLIF group (n = 36) P value
L4-5IDH (mm)
 Preoperative 8.49 ± 1.76 8.47 ± 1.66 0.458
 At the last follow-up 11.72 ± 1.87 9.26 ± 1.19  < 0.001
SL (°)
 Preoperative 11.14 ± 4.74 10.57 ± 5.74 0.873
 At the last follow-up 14.86 ± 5.58 12.11 ± 3.51 0.041
LL (°)
 Preoperative 33.25 ± 5.34 33.67 ± 7.51 0.247
 At the last follow-up 42.30 ± 6.27 34.09 ± 9.74 0.035
PI (°)
 Preoperative 51.42 ± 9.48 50.66 ± 10.47 0.304
 At the last follow-up 52.34 ± 8.90 51.53 ± 7.96 0.356
PT (°)
 Preoperative 24.49 ± 6.02 23.43 ± 5.48 0.652
 At the last follow-up 16.52 ± 4.21 21.78 ± 3.75 0.042
SS (°)
 Preoperative 28.43 ± 5.74 27.67 ± 2.08 0.652
 At the last follow-up 36.96 ± 7.17 30.98 ± 5.30 0.039