“…Nevertheless, there are potential problems with these latter options, such as long-term immobilisation in the prone position, infection, fl ap necrosis, graft loss and anal stenosis with graft contracture. 1 Indeed, other potential options for perianal soft tissue reconstruction have been described and reviewed in the literature. 1,4 Borrowed from architectural terminology, the term keystone design perforator island fl ap was coined by Behan in 2003 because of its curvilinear shaped trapezoidal design.…”