Observational Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Radiol. Nov 28, 2014; 6(11): 881-885
Published online Nov 28, 2014. doi: 10.4329/wjr.v6.i11.881
Table 1 Grades of facet joint arthritis for lumbar levels L4/5 and L5/S1 n (%)
Lumbar levelGrades
0IIIIII
L4/5 left17 (2.9)146 (24.7)290 (49.1)138 (23.4)
L4/5 right15 (2.5)147 (24.9)302 (51.1)127 (21.5)
L5/S1 left10 (1.7)136 (23.0)318 (53.8)127 (21.5)
L5/S1 right11 (1.9)136 (23.0)325 (55.0)119 (20.1)