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Table 2 ODI and VAS valuesa

From: Analysis of clinical effect and radiographic outcomes of Isobar TTL system for two-segment lumbar degenerative disease: a retrospective study

 Isobar TTL (n = 20)Rigid (n = 21)
ODIVASODIVAS
Before surgery81.84 ± 6.636.82 ± 1.7782.21 ± 5.866.70 ± 1.51
After surgery30.15 ± 4.382.75 ± 0.8628.06 ± 5.392.58 ± 0.86
P0.0000.0000.0000.000
P ODI (0.182) VAS (0.530)
  1. aData are presented as mean ± standard deviation
  2. P values are based on the paired t test. P is for postoperative values compared with preoperative values; P < 0.05. P′ is for the Isobar TTL group compared with the rigid group; P > 0.05 indicates a statistically significant difference