Explanation:
The Gustilo-Anderson classification guides the management of open fractures. A Type IIIB fracture involves extensive soft tissue injury with periosteal stripping and bone exposure, requiring a local or free soft tissue flap for coverage. Type IIIA can be closed primarily or with split-thickness skin grafts, while Type IIIC involves an associated arterial injury requiring repair for limb salvage regardless of the soft tissue damage. Reference: Rockwood and Green's Fractures in Adults, 9th Edition.