TABLE 6.
Comparison of interbody fusion, multifidus atrophy, and fatty infiltration among three groups
| Wiltse | MIS‐TLIF | PLIF | F | p | |
|---|---|---|---|---|---|
| Follow‐up time (months) | |||||
| CT | 12.14 ± 2.78 | 13.57 ± 2.60 | 12.73 ± 2.80 | 1.979 | 0.145 |
| MRI | 11.84 ± 3.07 | 12.25 ± 2.70 | 13.16 ± 3.0 | 0.650 | 0.528 |
| Interbody fusion rate (%) | 89.7 | 92.9 | 93.3 | 0.153 | 0.854 |
| Ratio of multifidus atrophy (%) | 24.13 ± 6.82a | 22.35 ± 5.03a | 41.70 ± 8.84b | 66.438 | <0.001 |
| Ratio of lean‐to‐total CSA | |||||
| Pre‐operation (%) | 69.28 ± 8.11 | 70.64 ± 7.92 | 68.17 ± 7.09 | 0.749 | 0.476 |
| Last follow‐up (%) | 63.34 ± 7.74a | 64.03 ± 7.19a | 56.60 ± 7.52b | 8.852 | <0.001 |
Note: Bold indicates statistically significant values. LSD method was used to compare the statistical differences between groups and at least one identical subscript letter denoted no significant difference from each other at the 0.05 level.
Abbreviations: Wiltse, Wiltse approach transforaminal lumbar interbody fusion; MIS‐TLIF, minimally invasive transforaminal lumbar interbody fusion; PLIF, posterior lumbar interbody fusion.