Table 2.
Results of MRI assessments of volume and rostral–Caudal extent of scarring in the PSM (n = 17) and ALG (n = 13) groups 6 months after microdiscectomy
| Assessment/group | Degree of scarring | |||
|---|---|---|---|---|
| None | Mild | Mild–moderate | Moderate–extensive | |
| Volume of scarring | ||||
| PSM group | 0 | 12 (71%) | 3 (18%) | 2 (12%) |
| ALG group | 0 | 7 (54%) | 3 (23%) | 3 (23%) |
| Extent of scarring | ||||
| PSM group | 1 (6%) | 10 (59%) | 6 (35%) | 0 |
| ALG group | 0 | 7 (54%) | 2 (15%) | 4 (31%) |
Values are numbers (%) of patients. Results were not available for one patient in the PSM group. None of the differences between the groups were significant (Wilcoxon two-sample test; P = 0.34 for volume and P = 0.21 for extent of scarring)