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Table 4 Fusion rate of the two groups

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

GradingIsobar TTL (n = 20)Rigid (n = 42)P
Fusion1940 
Possible fusion12 
Nonfusion00 
Fusion rate (%)95.0095.201.000
  1. P values are based on the χ2 test, P < 0.05 indicates a statistically significant difference