A 2-day-old male neonate born to a 28-year-old primigravida is noted to have bilateral foot deformities on routine postnatal examination. Both feet are held in a position of plantar flexion, inversion, and internal rotation. The feet cannot be passively corrected to a neutral position. There is no family history of skeletal abnormalities. What is the most appropriate initial management for this condition?

Explanation

## Diagnosis and Clinical Presentation **Key Point:** The clinical description—bilateral foot deformity with plantar flexion, inversion, and internal rotation that resists passive correction—is pathognomonic for congenital talipes equinovarus (CTEV), also known as clubfoot. ## Ponseti Method: Gold Standard Treatment **High-Yield:** The Ponseti technique is the worldwide standard of care for CTEV and achieves correction in >95% of cases without surgery when started early. ### Why Early Intervention Matters 1. **Timing is Critical:** Treatment must begin within the first 1–2 weeks of life, ideally before 7 days, when soft tissues are most pliable. 2. **Serial Casting Protocol:** Weekly manipulation and casting correct the deformity in a specific sequence: - Cavus (supination) first - Varus (inversion) second - Equinus (plantar flexion) last 3. **Success Rate:** When initiated early, >95% of idiopathic CTEV cases achieve full functional correction without surgery [cite:Tuli's Orthopedics 5e Ch 8]. ## Treatment Algorithm ```mermaid flowchart TD A[Newborn with CTEV]:::outcome --> B{Age at presentation?}:::decision B -->|< 2 weeks| C[Start Ponseti casting immediately]:::action B -->|> 2 weeks| D[Still eligible for Ponseti if untreated]:::action C --> E[Weekly manipulation + plaster cast]:::action E --> F[Average 5-7 casts needed]:::action F --> G{Equinus corrected?}:::decision G -->|No| H[Percutaneous tenotomy of Achilles]:::action G -->|Yes| I[Maintenance bracing for 3-4 years]:::action H --> I I --> J[Functional correction achieved]:::outcome ``` **Clinical Pearl:** Percutaneous Achilles tenotomy is performed at ~8–12 weeks of age if equinus persists after casting; it is a minor procedure with excellent outcomes and does not increase long-term morbidity. ## Maintenance Phase **Key Point:** After initial correction (typically 5–7 casts), the child requires continuous bracing (Denis Browne splint or foot abduction orthosis) for 3–4 years to prevent relapse. ## Why Not Surgery First? - Soft tissue surgery (extensive releases) is reserved for: - Rigid, resistant cases that fail Ponseti method - Late presentation (>3 months) with severe deformity - Syndromic CTEV with neuromuscular involvement - Early surgery causes tissue scarring, stiffness, and poor long-term functional outcomes [cite:Tuli's Orthopedics 5e Ch 8].