|
| Number | Percentage |
| Form of spondylolisthesis |
|
|
| Anterolisthesis | 106 | 89.83 |
| Anterolisthesis and retrolisthesis | 7 | 5.93 |
| Anterolisthesis and laterolisthesis | 3 | 2.54 |
| Retrolisthesis | 2 | 2.54 |
| Grade of spondylolisthesis |
|
|
| Grade I | 108 | 91.53 |
| Grade II | 10 | 08.47 |
| Location of the spondylolisthesis |
|
|
| *L4 - L5 | 92 | 77.97 |
| L5 - **S1 | 23 | 19.49 |
| L3 - L4 | 3 | 2.54 |
| Location of the isthmic lysis |
|
|
| L4 | 30 | 25.42 |
| L5 | 8 | 6.78 |
| L4 and L5 | 2 | 1.69 |
| Spondylosis |
|
|
| L4 - L5 | 46 | 38.98 |
| L5 - S1 | 29 | 24.58 |
| L3 - L4 | 22 | 18.64 |
| L2 - L3 | 8 | 06.78 |
| L1 - L2 | 5 | 04.24 |