Fix and Flap Principle

Combined approach involving: Early skeletal stabilisation (fixation) Early soft tissue coverage (flap) Typically performed in a single stage or closely timed stages Core concept in orthoplastic management of open fractures

Prof. Dr. Sefa Giray Batıbay· University of Health Sciences Orthopaedics and Traumatology
Apr 21, 2026

Rationale

  • Open fractures involve:

    • Bone instability

    • Soft tissue loss

    • Contamination

Delayed management increases:

  • Infection risk

  • Nonunion

  • Flap failure

Core Concept

  • “Fix the bone, then cover the soft tissue early”

Ideally:

  • Within 72 hours of injury

Indications

  • Open fractures with:

    • Soft tissue defects

    • Bone exposure

    • Hardware exposure

  • High-energy injuries (e.g., tibia)

  • Complex limb trauma

Key Components

1. Radical Debridement

  • Removal of all non-viable tissue

  • Repeated if necessary

  • Foundation of successful reconstruction

2. Stable Fixation

  • External fixation (temporary)

  • Internal fixation (definitive)

Stability:

  • Reduces dead space

  • Improves vascularity

  • Supports flap survival

3. Early Soft Tissue Coverage

  • Ideally <72 hours

  • Options:

    • Local flaps

    • Regional flaps

    • Free flaps

Goal:

  • Protect bone and implants

  • Restore vascular environment

4. Multidisciplinary Approach

  • Close collaboration between:

    • Orthopaedic surgeons

    • Plastic surgeons

Timing

Optimal Window

  • Within 72 hours (“golden period”)

Why Early Coverage?

  • Reduces:

    • Infection

    • Osteomyelitis

    • Nonunion

  • Improves:

    • Flap success

    • Functional outcomes

Evidence (Conceptual Summary)

  • Early fixation + early coverage:

    • Lower infection rates

    • Better limb salvage outcomes

  • Delayed coverage (>7 days):

    • Significantly increased complications

Treatment Workflow

Stage 1 (Day 0)

  • Antibiotics

  • Initial debridement

  • Temporary stabilisation

Stage 2 (Day 1–3)

  • Repeat debridement (if needed)

  • Definitive fixation

Stage 3 (<72 hours)

  • Definitive soft tissue coverage (flap)

Advantages

  • Lower infection rates

  • Faster healing

  • Reduced hospital stay

  • Improved limb salvage

Limitations / Contraindications

  • Haemodynamic instability

  • Severe contamination requiring staged debridement

  • Poor patient condition (polytrauma)

Complications

  • Flap failure

  • Infection

  • Nonunion

  • Need for revision surgery

Pits & Pearls

  • Fix and flap within 72 hours” = gold standard

  • Adequate debridement is more important than timing alone

  • Stable fixation improves flap success

  • Early collaboration with plastic surgery is critical

Pitfalls

  • Delaying coverage without clear reason

  • Inadequate debridement before flap

  • Performing fixation without soft tissue planning

  • Multiple unnecessary surgeries