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Table 2 Clinical outcomes

From: Gallie technique versus atlantoaxial screw-rod constructs in the treatment of atlantoaxial sagittal instability: a retrospective study of 49 patients

Characteristic Gallie group (n = 23) SRC group (n = 20) P value
NDI score
 Pre-op 17.4 ± 5.1 16.7 ± 4.9 ND
 Post-op 3 months 8.1 + 1.6 11.1 + 4.0 <0.05
 Post-op 6 months 3.8 + 1.7 5.1 + 1.8 <0.05
 Post-op 12 months 2.4 + 1.0 2.9 + 1.3 ND
 Post-op 24 months 1.7 + 1.2 1.9 + 1.1 ND
 Last follow-up 0.8 ± 0.8 0.9 ± 0.9 ND
VAS score
 Preo-op 5.4 ± 1.0 5.2 ± 1.5 ND
 Post-op 3 months 2.9 + 0.7 3.6 + 0.9 <0.01
 Post-op 6 months 1.6 + 0.6 1.8 + 0.7 ND
 Post-op 12 months 0.7 + 0.7 0.8 + 0.6 ND
 Post-op 24 months 0.4 + 0.5 0.4 + 0.5 ND
 Last follow-up 0.4 ± 0.5 0.3 ± 0.5 ND
  1. Data are expressed as mean ± standard deviation unless otherwise indicated
  2. Pre-op preoperative, Post-op postoperative, NDI neck disability index, VAS visual analog scale