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Table 4 Comparison of clinical outcomes according to preoperative facet degeneration

From: Does cervical facet degeneration impact surgical outcomes and sagittal balance in patients with radiculopathy?

   Mild-FD group Severe-FD group p-value
VAS
Neck pain
 Pre Median 7 8  < 0.001
IQR 5–8 7–8  
 F/U Median 2 2 0.169
IQR 2–3 2–3  
 Pre vs F/U    < 0.001  < 0.001  
Arm pain
 Pre Median 7.5 8 0.055
IQR 7–8 7–8  
 F/U Median 2 2 0.089
IQR 1–3 1–3  
 Pre vs F/U    < 0.001  < 0.001  
NDI
 Pre Median 31 37  < 0.001
IQR 27–36 32–39  
 F/U Median 14 14 0.528
IQR 11–17 12–17  
 Pre vs F/U    < 0.001  < 0.001  
SF-36
Physical functioning
 Pre Median 50 55 0.548
IQR 45–65 50–65  
 F/U Median 90 85 0.980
IQR 80–95 80–90  
 Pre vs F/U    < 0.001  < 0.001  
Social functioning
 Pre Median 50 48 0.557
IQR 43–55 43–53  
F/U Median 85 83 0.261
IQR 80–90 77.25–88.50  
 Pre vs F/U    < 0.001  < 0.001  
Bodily pain
 Pre Median 22 20.50 0.141
IQR 19–25 17–23.75  
 F/U Median 65.50 61.50 0.170
IQR 57–79 56–73.75  
 Pre vs F/U    < 0.001  < 0.001  
Vitality
 Pre Median 35 35 0.535
  IQR 25–40 25–40  
 F/U Median 70 65 0.223
IQR 55–80 60–70  
 Pre vs F/U    < 0.001  < 0.001  
Mental health
 Pre Median 61 62 0.774
IQR 56–64 57–64.75  
 F/U Median 69 70 0.790
IQR 65–74 65.25–74  
 Pre vs F/U    < 0.001  < 0.001  
General health
 Pre Median 64.50 63 0.320
IQR 54–77 53–74  
 F/U Median 69 67 0.351
IQR 59.75–75.25 58–76  
 Pre vs F/U   0.060 0.080  
  1. Pre, preoperative; F/U, follow up; FD, facet degeneration; IQR, interquartile range; VAS, visual analog scale; NDI, neck disability index; SF-36, Short Form-36