There is no significant relationship between a lumbar slip of 8 mm and the degree of slip. The grading of a lumbar slip is based on the share of the upper vertebrae that slip relative to the lower vertebrae, and there is no significant relationship to the length of the slip.
The classification of lumbar spondylolisthesis is based on the image presentation and is generally categorized into I, II, III, and IV degree spondylolisthesis.
Generally speaking, I-degree lumbar spondylolisthesis refers to the upper vertebrae slipping away from the lower vertebrae by a distance of 0 to 1/4 of the length of the lower vertebrae, II-degree lumbar spondylolisthesis is between 1/4 to 1/2, III-degree lumbar spondylolisthesis is between 1/2 to 3/4, and more than 3/4 is IV-degree lumbar spondylolisthesis.
Lumbar spondylolisthesis is recommended to go to the hospital in time, early formal treatment, in order to reduce the adverse effects of the disease.