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Number of patients treated nonoperatively and operatively
| Operative | |||||
|---|---|---|---|---|---|
| Classification | Total | Nonoperative | Anterior approach | Operative Posterior Approach | Anterior + Posterior approach |
| Type I | 154 | 116 | 6 | 17 | 0 |
| Effendi Type II | 95 | 67 | 8 | 18 | 2 |
| Levine-Edwards Type II | 64 | 58 | 0 | 6 | 0 |
| Levine-Edwards Type IIa | 16 | 7 | 0 | 8 | 1 |
| Type III | 28 | 5 | 11 | 12 | 0 |
