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Table 4 Summary of CT evaluation

From: Radiographic and clinical outcome of lateral lumbar interbody fusion for extreme lumbar spinal stenosis of Schizas grade D: a retrospective study

ParameterGradepreoperativepostoperativeChange valueChange rate %P
Anterior disk heightA10.52 ± 3.0613.39 ± 2.662.87 ± 2.2433.27 ± 30.270.431
 B10.51 ± 3.2413.35 ± 2.352.84 ± 2.1537.47 ± 45.170.407
 C10.80 ± 3.3113.26 ± 2.592.47 ± 2.0731.57 ± 39.950.803
 D12.89 ± 2.8715.22 ± 2.342.33 ± 2.0621.39 ± 20.73
Posterior disk heightA4.91 ± 1.907.57 ± 2.022.65 ± 1.6471.46 ± 69.840.979
 B5.62 ± 2.538.32 ± 2.402.70 ± 1.4769.14 ± 71.190.940
 C5.56 ± 2.227.40 ± 2.331.83 ± 1.4347.03 ± 57.900.070
 D6.17 ± 1.918.83 ± 1.952.67 ± 1.7555.97 ± 57.35
Disc angleA5.50 ± 3.345.71 ± 2.611.21 ± 3.680.852
 B5.04 ± 3.415.90 ± 3.780.85 ± 3.970.906
 C6.09 ± 3.327.34 ± 3.801.26 ± 3.910.790
 D6.74 ± 3.637.73 ± 3.890.99 ± 3.89
Left foraminal heightA17.43 ± 2.2719.74 ± 2.492.30 ± 2.1214.13 ± 13.970.751
 B17.86 ± 2.4920.36 ± 2.962.50 ± 1.6214.25 ± 9.230.433
 C17.71 ± 2.4319.24 ± 2.531.53 ± 1.679.19 ± 9.930.206
 D18.17 ± 1.8220.28 ± 1.602.11 ± 1.7512.20 ± 10.28
Right foraminal heightA16.65 ± 2.2719.70 ± 2.203.04 ± 1.8719.28 ± 12.940.098
 B17.68 ± 2.1420.51 ± 2.662.84 ± 1.8316.68 ± 13.080.146
 C17.96 ± 2.3619.62 ± 2.581.66 ± 2.059.95 ± 12.780.414
 D18.39 ± 2.0920.44 ± 2.152.05 ± 1.8311.83 ± 10.82
  1. This P value is the result of comparison of change value with grade D
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