It is usually located between L5-S1 and occasionally between L4-L5 interspaces. There are 4 grades of spondylolisthesis, depending on the degreet of subluxation.
Grades of Spondylolisthesis
The most common symptoms include low back pain which worsens when standing, bending, or during rotation, and neural involvement (pain, numbness etc.)
Surgery is indicated. Decompression of the neural elements and restoration of the spine’ s sagittal balance, are, of paramount importance.