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Table 2 Preoperative and postoperative functional and radiographic outcomes status and their correlation (N = 20)

From: Laminoplasty instead of laminectomy as a decompression method in posterior instrumented fusion for degenerative cervical kyphosis with stenosis

Items Preop Postop T value P value
Functional outcome     
 JOA score 10.1 ± 1.6 15.7 ± 1.8 −27.58 <0.001*
 Nurick score 2.6 ± 0.7 0.4 ± 0.9 15.00 0.001*
 NDI 39.9 ± 6.1 22.4 ± 3.8 −16.63 0.001*
 Neck pain VAS 6.2 ± 0.8 2.0 ± 1.3 13.28 0.118
Radiographic outcome     
 Cervical curvature (degree) −5.0 ± 3.7 9.3 ± 2.1 −8.67 <0.001*
 ROM (degree) 15.4 ± 5.4 1.0 ± 0.4 9.81 0.311
  1. Data are presented as mean ± standard deviation
  2. JOA Japanese Orthopedic Association, NDI neck disability index, VAS visual analog scale, ROM range of motion
  3. *Means P value <0.05