Table 2.
Comparison of thermal damage at different power settings among different laparoscopic shears
| Group comparison | Mean value A (μm) | Mean value B (μm) | p value |
|---|---|---|---|
| Monopolar diathermy vs. Harmonic scalpel (output power 3) | 215.79 | 90.42 | <0.001 |
| Monopolar diathermy vs. Harmonic scalpel (output power 5) | 215.79 | 127.48 | <0.001 |
| Monopolar diathermy v. LigaSure | 215.79 | 144.18 | <0.001 |
| Harmonic scalpel (output power 3) vs. Harmonic scalpel (output power 5) | 90.42 | 127.48 | 0.001 |
| Harmonic scalpel (output power 3) vs. LigaSure | 90.42 | 144.18 | <0.001 |
| Harmonic scalpel (output power 5) vs. LigaSure | 127.48 | 144.18 | 0.39 |
| Harmonic scalpel (output power 5)vs. Sonosurg | 90.49 | 117.6 | <0.001 |