Timing of Surgery — the "Rule of 10"
🔟 Rule of 10 for cleft lip closure
- 10 weeks of age · 10 pounds (≈4.5 kg) weight · Hb ≥10 g/dL · TLC <10,000/mm³.
- The strict age criterion is no longer essential — the ideal window for lip repair is now ~3 months (some centres repair a lip with severe associated deformity in the first week of life).
| Procedure | Usual timing | Rationale |
|---|---|---|
| Cleft lip repair | ~3 months | Facilitates suckling, parent–child bonding; arrests alveolar/nasal deformity in complete clefts. Lip repaired first also narrows the palatal defect. |
| Soft palate repair | ~9–18 months (≈12–15 months) | Closed before speech development for velopharyngeal competence |
| Hard palate repair | Some protocols delay to ~4–5 years | To allow maxillary growth (two-stage philosophy) |
Why not operate in the neonatal period? Avoids GA-related risks in the neonate, allows the tissues to mature/enlarge for better surgical handling, and gives time to investigate other congenital anomalies.