Educational draft · awaiting clinical reviewUse Rapid for revision, not patient-care decisions. Check current national and local guidance and the BNF or BNFC before acting.
2 min synopsisUK scopeSources checked 13 Sept 2026Clinical review pending
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Life before limb length
Uncontrolled sepsis, necrotising infection, non-salvageable wet gangrene or rapidly progressive ischaemic necrosis may require emergency amputation when lesser source control cannot stabilise the patient.
Action: Resuscitate, start appropriate antibiotics, obtain immediate surgical and vascular review, define whether revascularisation or drainage can preserve tissue, and do not delay life-saving surgery for elective rehabilitation tests.
Synopsis
Plan amputation as a source-control and functional reconstruction decision by integrating perfusion, tissue viability, infection clearance, biomechanics and patient goals.
In sepsis or non-salvageable spreading infection, immediate source control takes priority; involve vascular surgery because revascularisation may still change the viable level.
Choose the most distal level that is likely to heal, can be covered with viable tissue, clears infection and creates a biomechanically useful limb; length alone is not success.
Assess perfusion objectively because pulse palpation and ABPI can mislead in diabetes; toe pressure, TcPO2, waveforms and imaging may change the planned level.
Key red flags
Shock, organ dysfunction, spreading necrosis, ascending infection or uncontrolled deep sepsis can make definitive amputation an emergency source-control procedure.
Progressive gangrene with no reconstructable arterial target, severe rest pain or irreversible tissue loss signals that prolonged salvage may increase harm.
A proposed distal stump with inadequate perfusion, insufficient soft-tissue cover or residual infected bone has a high risk of failure and revision.
Frailty, severe cardiac disease, cognitive impairment, contralateral limb disease and pre-existing immobility profoundly change survival and rehabilitation benefit.
Investigation priorities
01
Perfusion and arterial anatomyFirst step
Estimate whether the proposed level can heal and whether revascularisation could preserve a more functional segment.
Management branches
Emergency pathwayAmputation for uncontrolled threat
Sepsis, necrotising spread, irreversible wet gangrene or a non-salvageable infected limb cannot be controlled by drainage or limited debridement.
Resuscitate, begin antibiotics, obtain immediate senior surgical and vascular input and establish whether rapid revascularisation or drainage offers meaningful preservation.
When definitive removal is required, choose a level that clears infection and non-viable tissue and can be covered safely; a staged open or guillotine procedure may precede formal revision in contamination.
Preferred branchPlanned limb and level conference
The patient is stable enough for multidisciplinary comparison of further salvage, minor amputation and major amputation.
National guidance is shown before implementation-dependent detail. Apply principles in context and verify current guidance when a decision affects care. Source check completed 13 Sept 2026; clinical approval remains outstanding.
Vascular Society major amputation pathwayUK vascular surgical pathway for MDT decisions, revascularisation review, level assessment, pain, rehabilitation and proportional care.
Global Vascular Guidelines on CLTISection 9 covers minor and major amputations, distal perfusion, offloading, functional level selection, reamputation and ulcer/deformity risk.