In the management of an open tibia fracture (Gustilo-Anderson Grade IIIB), the preferred timing for soft tissue reconstruction after initial wound debridement is:

• A Within 72 hours to 7 days (early definitive coverage) ✓
• B Immediate flap coverage at the time of first debridement
• C Only after fracture union at 3–6 months
• D Split skin grafting alone without flap reconstruction

Explanation

For Grade IIIB open tibia fractures with extensive periosteal stripping and exposed bone requiring flap coverage, current evidence (Godina's principle) recommends early definitive soft tissue reconstruction within 72 hours to 7 days. Early coverage (<72 hours) achieves best results (lowest infection, nonunion rates). Coverage beyond 7–10 days significantly increases infection rates. Immediate coverage at first debridement is not recommended as adequate wound assessment requires 24–48 hours. IIIB fractures have exposed bone that cannot granulate without a vascularized flap (usually free muscle flap).

Reference: Maheshwari Essential Orthopaedics, 6th ed.

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Written and medically reviewed by the StethoPrep medical team.