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Table 2 Patients’ demographics and group details

From: The use of the DTO™ hybrid dynamic device: a clinical outcome- and radiological-based prospective clinical trial

Characteristics Group 1 Group 2 Group 3
Patients (n = 55) 14 18 23
Female (n = 36) 10 12 14
Male (n = 19) 4 6 9
Mean age in years (range) 65.50 (47–84) 71.22 (60–80) 70.09 (55–81)
Follow up (mean in months) 26 32.80 35.42
Dynamic stabilised segments
 L4/5 4 3 0
 L3/4 6 7 5
 L2/3 3 7 12
 L1/2 1 1 6