Lumbar lordosis angle value analysis and bone tissue density in the ls section in women after 50 years old

Introduction: The lumbar lordosis angle measured by radiology under normal conditions is between 135-1400. Any deviation from the values is associated with a change in static-dynamic loads and should translate into a change in bone tissue within the lumbar-sacral border, which results from a change in the distribution of load forces acting on individual parts of the vertebral bodies. The aim: To determine the relationship between individual variants of lordosis (hypolordosis, hyperlordosis, norm) and the general density of the spongy part of individual vertebral bodies and in selected zones of the lumbosacral zone (L5 / S1).

Material and methods: The study group was a population of women over 50 (n = 277), it was divided into three subgroups, i.e. women with: normal, shallow and deepened lordosis. In the sagittal view, the density of vertebral bodies from L1 to S1 was assessed.

Results: The difference in the overall density of individual stems between normal lordosis and extreme values was significant (p≥0.05) only for the L1, L2 and S1 vertebrae, whereas in the case of an excessive lordosis angle, the density of spongy bone tissue showed significant differences for all measurement points.

Conclusions: Deviations from the correct values of the lumbar lordosis angle result in a change in compressive and shear forces, which is reflected in the reconstruction of bonetissue. This can be a clue to differentiate the physiotherapy program of women reporting back pain - depending on the size of the lumbar lordosis angle.