This is a degenerative spondylolisthesis. This is also a degenerative condition, essentially though it can happen in young, but it’s a desiccation, disc desiccation which causes this, leading with annular tear, posterior PLL (Posterior Longitudinal Ligament) tears, there they can come out. This is also a degenerative condition causing spondylolisthesis, also along with it.
It can be congenital also in case of past defect or isthmus defect, rarely it can be traumatic with causing fracture of the pars, leading to instability. These are fractures: compression fractures, vertebral compression fractures. They are mostly seen in thoracic or lumbar thoracic junction. They can happen in lumbar, vertebrae also.
Mostly, they are treated conservatively with rest, with brace, and patients are actually allowed to be out of bed as comfortable in cases of fracture. Only if they have a retropulsion, or if the pain persists beyond two to three weeks and not getting better, then we can give an option of vertebroplasty or kyphoplasty.
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