Fasciocutaneous flaps are designed based on blood vessels running either within or near the fascia.
Cormack and Lamberty classification of FC flaps
Type A
• Dependent on multiple non-named fasciocutaneous vessels that enter the base of the flap.
• Lower leg ‘super flaps’ described by Pontén are examples of type A flaps.
∘ Their dimensions vastly exceed the 1:1 ratios recommended.
Type B
• Based on a single fasciocutaneous vessel, which runs along the axis of the flap.
• Examples :
- Scapular/parascapular flap
- Perforator-based fasciocutaneous flaps of the lower leg.
Type C
• Supplied by multiple small perforating vessels, which reach the flap from a deep artery
running along a fascial septum between muscles.
• Examples:
- radial forearm flap (RFF)
- Lateral arm flap.
Type C flaps with bone
• Osteofasciocutaneous flaps
•These flaps were originally classified as type D.
Examples:
- ∘ RFF raised with a segment of radius
- Lateral arm flap raised with a segment of humerus.
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