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Visual analogue scale for back pain after the minimally invasive surgery and the open surgery
| MIS (n=13) | Open surgery (n=17) | p-value | |
|---|---|---|---|
| Pre-operative | 8.7±1.4 | 8.5±1.3 | 0.750 |
| Post-operative 1 month | 5.5±1.3 | 5.9±1.1 | 0.369 |
| Post-operative 3 months | 3.0±1.2 | 4.3±1.2 | 0.042* |
Values are presented as mean±standard deviation.
Statistical significance.
MIS : minimally invasive surgery
