Table 2: Adhesion score, fibrosis, fat infiltration, and length of surgery.

PatientDiagnosisTLIFAdhesion scoreFibrosis (mm)% fat infiltrationSurgery time (min)

1SpondylolisthesisL4-L542.510101
2StenosisL4-L5250135
3SpondylolisthesisL3-L522.50119
4StenosisL3-L5265116
5SpondylosisL4-S122.55 77

Adhesion score: 4 = sharp dissection required; 2 = easily detachable.