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Table 1 General data of the two study groupsa

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

General dataIsobar TTL (n = 20)Rigid (n = 21)P
Age (years)64  ± 7.7861 ± 6.500.338
Sex
 Female12 (60%)10 (47.62%)0.427
 Male8 (40%)11 (52.38%)
Follow-up (months)22.00 ± 7.0125.18 ± 4.750.227
Operation time (min)163.64 ± 42.42185.67 ± 27.800.138
Intraoperative blood loss (mL)245.45 ± 145.70445.00 ± 305.000.067
Hospital stay (days)20 ± 4.2218.6 ± 1.920.187
  1. aData are presented as mean ± standard deviation
  2. P values are based on the t test; P > 0.05 for the Isobar TTL group compared with the rigid fixation group