Effect of Age and Lordotic Angle on the Level of Lumbar Disc Herniation

Table 1

Lumbar lordosis and age.

	Total		Group 1		Group 2
Age	𝑁	LLA	𝑁	LLA^*†	𝑁	LLA
30–39	223	32.35°	5	28.6°	218	35.76°
40–49	308	29.8°	11	25.4°	297	30.97°
>70	218	25.26°	115	33.2°	103	24.19°

*Lordotic lumbar angle.
^†The mean values for the lumbar lordotic Cobb’s angle for groups 1 and 2 are compared. The third- and fourth-decade groups of patients in group 1 (5 and 11, resp.), who had evidence of a high level (L1-2, L2-3) disc herniation as measured by Cobb's method, unexpectedly show lower mean angles (28.6° and 25.4°, resp.) than the other groups. As for the older patients (>70 years of age), group 1 (115 patients), who had evidence of a low level (L4-5, L5-S1) disc herniation as measured by Cobb’s method, shows an unexpectedly higher mean angle (33.2°).