Table 2 Pathology of the index (fusion) and adjacent segment
Cases | Pathology of the index segment | Pathology of the adjacent segment (Pfirrmann classification) |
|---|---|---|
1 | Degenerative spondylolisthesis II° L4–5 and absolute LSS | L3–4: grade III |
2 | Erosive osteochondrosis L5–S1 Modic III° and foraminal stenosis L5 right | L4–5: grade II |
3 | Degenerative spondylolisthesis II° L4–5 and absolute LSS | L3–4: grade II |
4 | Isthmic spondylolisthesis I° L5–S1 | L4–5: grade III |
5 | Erosive osteochondrosis L5–S1 Modic III° and absolute LSS L5–S1 | L4–5: grade III |
6 | Degenerative spondylolisthesis II° L4–5 and erosive osteochondrosis L4–5 Modic III° | L3–4: grade III |
7 | Isthmic spondylolisthesis II° L5–S1 | L4–5: grade III |
8 | Erosive osteochondrosis L5–S1 Modic III° | L4–5: grade III |
9 | Degenerative spondylolisthesis II° L4–5 with disc herniation | L3–4: grade II, LSS |
10 | Degenerative spondylolisthesis II° L4–5 | L3–4: grade IV, LSS |
11 | Erosive osteochondrosis L4–5 Modic III° and absolute LSS | L3–4: grade III, LSS |
12 | Erosive osteochondrosis L4–5 Modic III° and absolute LSS | L3–4: grade IV |
13 | Degenerative spondylolisthesis II° L4–5 and absolute LSS | L3–4: grade III |
14 | Degenerative spondylolisthesis II° L4–5 | L3–4: grade II, foraminal stenosis bilateral |
15 | Erosive osteochondrosis L4–5 Modic II° and absolute LSS | L3–4: grade II |
16 | Erosive osteochondrosis L5–S1 Modic III° | L4–5: grade II |
17 | Degenerative spondylolisthesis I° L5–S1 and absolute LSS | L4–5: grade III |
18 | Degenerative spondylolisthesis I° L5–S1 | L4–5: grade IV, disc herniation |
19 | Degenerative spondylolisthesis II° L4–5 and absolute LSS | L3–4: grade III |
20 | Erosive osteochondrosis L5–S1 Modic III° and absolute LSS | L4–5: grade III |
21 | Erosive osteochondrosis L5–S1 Modic III° and absolute LSS | L4–5: grade II |
22 | Degenerative spondylolisthesis I° L4–5 and absolute LSS | L3–4: grade III, relative LSS |