Table 5. Comparison between the types of surgery for delta grip strength measured by the Jamar dynamometer, in which: a positive value indicates improvement in grip strength and a negative value indicates a decrease in it.
| Jam delta | Mean | Median | Standard Deviation | VC | Min | Max | N | CI | p-value | |
|---|---|---|---|---|---|---|---|---|---|---|
| T0-30 | Open | - 2.79 | - 2 | 3.78 | 136% | - 12 | 4 | 28 | 1.40 | 0.722 |
| Zeta | - 2 | - 2 | 3.25 | 133% | - 8 | 2 | 27 | 1.23 | ||
| T0-90 | Open | - 0.50 | 0 | 3.95 | 790% | - 8 | 8 | 28 | 1.46 | 0.509 |
| Zeta | - 1.19 | 0 | 3.69 | 311% | - 10 | 4 | 27 | 1.39 | ||
| T0-180 | Open | 0.29 | 0 | 4.54 | 1591% | - 10 | 10 | 28 | 1.68 | 0.531 |
| Zeta | 0.96 | 2 | 3.30 | 343% | - 6 | 8 | 27 | 1.24 | ||
| T30-90 | Open | 2.29 | 2 | 3.21 | 140% | - 2 | 8 | 28 | 1.19 | 0.229 |
| Zeta | 1.26 | 0 | 3.05 | 242% | - 2 | 8 | 27 | 1.15 | ||
| T30-180 | Open | 3.07 | 2 | 4.27 | 139% | - 6 | 14 | 28 | 1.58 | 0.745 |
| Zeta | 3.41 | 4 | 3.27 | 96% | - 2 | 12 | 27 | 1.23 | ||
| T90-180 | Open | 0.79 | 0 | 2.39 | 305% | - 4 | 6 | 28 | 0.89 | 0.051 |
| Zeta | 2.15 | 2 | 2.66 | 124% | - 2 | 8 | 27 | 1.00 | ||