Leg length discrepancy (LLD) occurs commonly and has been associated with osteoarthritis of the knee and the hip joints. However, the possible association between LLD and degenerative changes in the lumbar spine has not been investigated. Here we correlate the degree of LLD with degenerative changes in the hip joints and the lumbar spine. A modification of Friberg's method was used to measure LLD and a novel method was devised to exclude magnification errors in standing radiographs of the lumbopelvic region. 5mm of LLD was considered significant. 75 sets (36 female and 39 male) of radiographs from adult patients presenting to chiropractic teaching clinics were used. Degenerative changes at hip and L4/5 and L5/S1 disc spaces were graded on a 4-point scale. Hip degeneration in men with significant LLD was [mean, 95% confidence interval] [1.35, 1.05–1.66], as opposed to men with no significant LLD [0.31, 0.1–0.53]. Degenerative changes at the L5/S1 spinal level in the group with significant LLD demonstrated values of [1.04, 0.75–1.33], compared to the group without significant LLD with values of [0.41, 0.22–0.61]. The association between LLD and lumbar degeneration was particularly strong in men and also in women at or above the age of 25.Purpose and Background
Methods and Results
