Table III.
Relationship between clinical parameters and condition of the ossicular chain.
| Other ear | Normal ossicular chain | Eroded ossicular chain |
|---|---|---|
| Normal | 11 (18%) | 68 (82%) |
| Chronic otitis | 14 (23%) | 47 (77%) p > 0.05 |
| Pathogenesis of cholesteatoma | ||
| Congenital | 0 (0%) | 12 (100%) |
| Migration | 3 (19%) | 13 (81%) |
| Retraction | 22 (20%) | 90 (80%) p > 0.05 |
| Aspect of the tympanic membrane | ||
| Normal | 0 (0%) | 12 (100%) |
| Posterior perforation | 2 (17%) | 10 (83%) |
| Subtotal perforation | 1 (14%) | 6 (86%) |
| Anterior attical retraction | 4 (40%) | 6 (60%) |
| Posterior attical retraction | 2 (22%) | 7 (78%) |
| Total attical retraction | 0 (0%) | 10 (100%) |
| Posterior pars tensa retraction | 15 (22%) | 52 (78%) p > 0.05 |
| Number of sites involved | ||
| 1 | 20 (34%) | 39 (66%) |
| 2 | 5 (9%) | 48 (91%) |
| 3 | 0 (0%) | 28 (100%) p < 0.0001* |
| Othorrea | ||
| No | 16 (23%) | 52 (77%) |
| Yes | 9 (12%) | 63 (88%) p > 0.05 |
| Other lesions | ||
| No | 25 (21%) | 92 (79%) |
| Yes | 0 (0%) | 23 (100%) p > 0.05 |