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Table 4 Related factors of neurogical complications between NC group and non-NC group

From: Risk factors for neurological complications in severe and rigid spinal deformity correction of 177 cases

Factors NC group(n = 22) Non-NC group(n = 155) P value
Age 24.6 ± 8.7 20.5 ± 8.2 0.032
Sex(M/F) 12/10 72/83 0.459
Diagnosis IS(7),CS(5),NM(6), TB(2),revision(2) IS(71),CS(24),NM(26),NF(17), TB(7),revision(6),other(4) 0.032
Osteotomy
 SPO 1 38 0.001
 PSO 2 27
 PDO 3 40
 VCR 8 45
 MVCR 8 27
Curve type
 Scoliosis 0 25 0.122
 Kyphosis 2 9
 Kyphoscoliosis 20 121
Spinal cord function
 Type A 6 102 < 0.001
 Type B 7 44
 Type C 9 9
Angle of scoliosis (°) 129.6 ± 26.2 114.9 ± 25.6 0.017
Scoliosis correction rate (%) 50.5% ± 18.8% 55.4% ± 12.4% 0.123
Angle of kyphosis (°) 130.8 ± 31.3 105.5 ± 33.2 0.001
Kyphosis correction rate (%) 49.8% ± 20.4% 59.3% ± 14.3% 0.008
C-DAR 19.3 ± 6.6 18.1 ± 5.5 0.344
S-DAR 23.2 ± 7.9 18.1 ± 8.1 0.007
T-DAR 40.8 ± 12.6 32.4 ± 13.2 0.006
Flexibility (%) 14.4 ± 11.5 15.6 ± 10.9 0.672
Halo gravity traction 14/22 41/113 < 0.001
Osteotomy site
 HT 2 6 0.037
 MT 10 58
 LT 10 72
 L 0 19
Anterior strut graft 7/22 27/155 0.115
Shortening distance of osteotomy gap (cm) 3.8 ± 0.8 3.5 ± 0.8 0.159
Blood loss 2605.7 ± 131.3 3295.7 ± 425.3 0.073
Operative time 472.1 ± 8.3 564.5 ± 37.8 0.001