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no significant difference was noticed between retrolisthesis and ..
There was a significant statistical difference between the mean Weishaupt grades at the level of either retrolisthesis and anterolisthesis in group R+A (p=0.000 in observers 1 and 2) ().
There was a significant statistical difference in the incidence of instability between retrolisthesis (3/40 in observer 1, 4/40 in observer 2) and anterolisthesis (18/38 in observer 1, 17/38 in observer 2) in group R+A (p=0.000 in observer 1, p=0.001 in observer 2) ().
Doctor insights on: Retrolisthesis And Spondylolisthesis
There were different clinical features and developmental mechanisms between retrolisthesis and anterolisthesis. The location of retrolisthesis was affected by the presence of simultaneous anterolisthesis, even though it predominantly manifest in L3. The relative lower pelvic incidence, pelvic tilt, and lumbar lordosis compared to anterolisthesis were related to the generation of retrolisthesis, with the opposite observations of patients with anterolisthesis.
The amount of slippage in retrolisthesis or anterolisthesis was measured as the distance between two posterior perpendicular lines over the transverse line of the upper or lower endplate of each vertebra on a lateral neutral film. Retrolisthesis and anterolisthesis were respectively defined as a backward slippage of ≥2 mm and a forward slippage of ≥3 mm on a static lateral lumbar radiograph.
Anterolisthesis and Spondylolisthesis - Page 2
L3 was the level with the most frequently developing retrolisthesis in groups (group R and R+A), and there was a significant statistical difference of prevalence level between two groups (p=0.022 in observers 1 and 2). The retrolisthesis has a tendency to dominate on L3 and below level in group R, and L3 and above level in group R+A ().
There was a significant statistical difference of LL in patients with L4 anterolisthesis due to the presence of L3 retrolisthesis (p=0.03 in observer 1, p=0.005 in observer 2). The patients with L3 retrolisthesis presented a lower LL ().
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Retrolisthesis | Radiology Reference Article | …
Student's t-test and one-way analysis of variance for each parametric continuous variable, as well as Mann-Whitney U test and Kruskal-Wallis test for each non-parametric continuous variable, were used for comparing statistical differences. Each categorical variable between each study group was compared using chi-square test, Fisher's exact test, and linear-by-linear association method.
How Are Spondylosis and Spondylolisthesis Related?
There was no significant statistical difference between the mean Pfirmann's scores at the level of either retrolisthesis and anterolisthesis in group R+A (p=0.797 in observer 1, p=0.587 in observer 2) ().
The relationship between spondylosis and spondylolisthesis.
There was a significant statistical difference between the degeneration gap among disc and facet joint at the level of either retrolisthesis or anterolisthesis in group R+A (p=0.000 in observers 1 and 2) ().
Anterolisthesis - Grading, Causes, Treatment and …
There was no significant statistical difference between the mean facet joint angles at the level of retrolisthesis and anterolisthesis in group R+A (p=0.108 in observer 1, p=0.136 in observer 2) ().
The slippage can either be anterolisthesis or retrolisthesis
The patterns of degeneration in the lumbar spine have been extensively studied. Some studies have demonstrated that disc degeneration occurs first. Then, an increase in the rotational and transitional forces leads to the overloading of the facet joints. This, in turn, leads to a progressive degenerative change in the facet joint, with a lag of over two decades following the onset of disc degeneration,,,,,,. Disc degeneration is believed to precede facet joint degeneration, and to be a primary cause of anterolisthesis,,. Love et al. have concluded that a sagittal-oriented facet angle is the result of arthritic remodeling and not a primary cause of anterolisthesis. We also found that there was no statistically significant difference in the sagittal facet angle between anterolisthesis and retrolisthesis in this study.
Anterolisthesis is derived from two ..
Recent studies have suggested that factors such as global spinal sagittal alignment and pelvic parameters account for variations in degenerative patterns, including facet and disc pathology. We think that the factors related to spinal sagittal balance may have a strong influence on the development of a different kind of spondylolisthesis, including retrolisthesis and anterolisthesis, based on the results in this study. Under specific conditions such as greater LL and high PI, anterolisthesis might develop with more overloaded power on the facet joint, which leads to facet joint degeneration as well as to disc degeneration. In contrast to the development of anterolisthesis, there was a greater aggravation of disc degeneration than of facet degeneration with lower overloading power on the facet joints in retrolisthesis under contrasting conditions of sagittal profiles.
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