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Table 1 The parameters of the L4-SP

From: Morphological parameters of fourth lumbar spinous process palpation: a three-dimensional reconstruction of computed tomography

DistributionType IType IIType III
Numbers26616218
Ratios (%)53.203.2043.60
BC (mm)15.92 ± 1.30b16.16 ± 1.1815.56 ± 1.32
AB (mm)8.02 ± 0.737.98 ± 0.767.89 ± 0.79
AC (mm)7.96 ± 0.798.26 ± 0.817.97 ± 0.84
Angle (°)173.00 ± 4.83ab164.69 ± 5.50b159.45 ± 8.39
α (°)1.07 ± 3.051.00 ± 3.971.18 ± 3.33
β (°)89.78 ± 5.2890.00 ± 6.1589.58 ± 3.44
γ (°)74.46 ± 3.2674.38 ± 3.6574.16 ± 5.92
Length (mm)3.06 ± 0.412.84 ± 0.523.07 ± 0.51
  1. aP < 0.05 VS above the L4-SP
  2. bP < 0.05 VS below the L4-SP