Table 1 Comparison of general characteristics between the paralysis group and nonparalysis group
From: Analysis of risk factors for C5 nerve root paralysis after posterior cervical decompression
Variable | No C5 Palsy (n = 606) | C5 Palsy (n = 34) | χ2/t | P |
|---|---|---|---|---|
Male/Female | 338/268 | 28/6 | χ2 = 9.288 | 0.002 |
Age(years) | 62.00 ± 10.29 | 64.53 ± 9.23 | t =-1.402 | 0.163 |
Diabetes | 121(19.97) | 7(20.59) | χ2 = 0.008 | 0.930 |
BMI (kg/m2) | 25.57 ± 4.62 | 26.07 ± 4.41 | t =-0.624 | 0.533 |
Foramen intervertebrale width | 3.64 ± 1.05 | 3.22 ± 1.02 | t = 2.307 | 0.021 |
OPLL | 41(6.77) | 7(20.59) | χ2 = 6.986 | 0.008 |
T2 | 192(31.68) | 30(88.24) | χ2 = 45.446 | 0.000 |
T2 at C4-C5 | 107(17.66) | 20(58.82) | χ2 = 34.301 | 0.000 |
Open angle (°) | 58.88 ± 4.34 | 60.15 ± 4.19 | t =-1.662 | 0.097 |
Laminectomy width | 16.30 ± 2.57 | 15.59 ± 2.53 | t = 1.579 | 0.115 |
Preoperative cervical curvature (°) | 17.99 ± 4.50 | 20.24 ± 4.28 | t =-2.841 | 0.005 |
Postoperative cervical curvature (°) | 15.66 ± 3.52 | 16.53 ± 2.55 | t =-1.897 | 0.065 |