Types of surgery in different aetiological groups
| Aetiology | Anterior levator surgery (n=141) | Posterior levator surgery (n=90) | Mersilene mesh frontalis suspension (n=29) | Autogenous fascia lata frontalis suspension (n=59) | Other (n=21) |
|---|---|---|---|---|---|
| *Levator tranpositions. | |||||
| Myogenic (n=269) | 119 | 75 | 22 | 49 | 4 |
| Aponeurotic (n=16) | 5 | 10 | 0 | 0 | 1 |
| Neurogenic (n=37) | 6 | 5 | 4 | 7 | 15* |
| Mechanical (n=6) | 5 | 0 | 1 | 0 | 0 |
| Apparent (n=2) | 1 | 0 | 0 | 0 | 1 |
| Syndrome related (n=10) | 5 | 0 | 2 | 3 | 0 |