Table 2.
Pre- and postoperative NDI, JOA scores, and JOA scores IR (means ± standard deviation)
Preoperative | Postoperative follow-up | |||||
---|---|---|---|---|---|---|
1 month | 3 months | 6 months | 12 months | Last follow-up | ||
NDI (%)a | 61.17 ± 3.54 | 33.61 ± 3.17 | 30.53 ± 2.91 | 23.86 ± 2.54 | 21.08 ± 2.30 | 18.64 ± 2.73 |
JOAa | 9.39 ± 0.84 | 12.14 ± 1.36 | 12.44 ± 1.36 | 13.47 ± 1.08 | 14.19 ± 1.19 | 14.78 ± 1.27 |
JOA IRb | 36.14 | 40.08 | 53.61 | 63.07 | 70.83 |
NDI Neck Disability Index, JOA Japanese Orthopaedic Association, IR improvement rate
aData are displayed as means ± standard deviation
bData are displayed as a percentage