| Pirani Score | Initial score n (%) | Before tenotomy n (%) | Final score n (%) |
| zero | 0 (0%) | 33 (22%) | 112 (74.66%) |
| moderate 0.5 - 3 | 23 (15.34%) | 116 (77.33%) | 37 (24.67%) |
| severe ≥ 3.5 | 127 (84.66%) | 1 (0.67%) | 1 (0.67%) |