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OVERVIEW
Diabetic Foot Care & Surgery is a specialised clinical discipline combining podiatric medicine, vascular surgery, infectious disease management, and reconstructive orthopaedics. The treatment mechanism focuses on eliminating pressure points, removing dead tissue (debridement), re-establishing adequate arterial blood circulation, and resolving bone or soft-tissue infection. It falls under the umbrella of multi-disciplinary limb preservation medicine.
PROCEDURE
Diabetic foot management combines surgical and non-surgical procedures tailored to wound stage and vascular status. Surgical sharp debridement involves mechanically removing necrotic skin, slough, and infected bone down to healthy, bleeding tissue margins using sterile scalpels or curettes. Vascular interventions include percutaneous transluminal angioplasty or surgical arterial bypass to re-establish blood flow. Structural deformities are addressed via tenotomies, exostectomies, or partial foot resections to eliminate high-pressure areas. Non-surgical protocols utilise total contact casting (TCC) or removable cast walkers to relieve mechanical strain.
BENEFITS
Evidence-based outcomes for structured diabetic foot care and surgical intervention include:
- Limb preservation: Operative debridement combined with revascularisation lowers major amputation rates by over 60% (IWGDF 2023).
- Infection resolution: Targeted surgical drainage and antimicrobial therapy effectively eradicate deep tissue and bone infections.
- Wound closure: Advanced wound therapies and surgical reconstruction achieve durable epithelial closure in complex ulcers.
- Pain relief and mobility restoration: Corrective joint stabilization improves mechanical alignment and preserves functional ambulation.
RECOVERY
Recovery timelines vary depending on the severity of the intervention. Minor soft-tissue debridements may heal within 4 to 8 weeks with appropriate offloading. Major procedures, such as endovascular revascularisation or partial foot amputations, require 8 to 16 weeks of structured wound care, custom footwear fitting, and physical rehabilitation. Full mechanical stabilization of Charcot foot reconstruction may extend to 6–12 months.
WHAT WE TREAT
Diabetic foot care and surgery treats a wide range of lower-extremity complications caused by diabetes mellitus. Primary indications include:
- Diabetic foot ulcers (DFUs): Full-thickness skin breaks below the ankle in diabetic patients.
- Diabetic peripheral neuropathy: Loss of protective sensation leading to unperceived repetitive trauma.
- Peripheral artery disease (PAD): Arterial narrowing that impairs tissue oxygenation and wound healing.
- Osteomyelitis: Bacterial infection of the underlying bone structure.
- Charcot neuroarthropathy: Progressive joint destabilisation and foot deformity caused by nerve loss.
- Gangrene: Tissue death secondary to severe ischaemia or overwhelming infection.
PREPARATION
Preparation involves a complete clinical evaluation including ankle-brachial index (ABI) and toe-brachial index (TBI) testing to assess blood supply. Blood tests evaluate glycaemic control (HbA1c), inflammatory markers (CRP, ESR), and renal function. Imaging includes plain radiographs, MRI, or probe-to-bone testing to identify osteomyelitis. Blood glucose levels must be stabilized, and systemic empiric antibiotics initiated if soft tissue infection is present. Smoking cessation is strictly advised prior to surgical procedures.
RISKS
Complications associated with diabetic foot care and surgical intervention include wound dehiscence (wound reopening), non-healing ulcers due to microvascular disease, recurrent bacterial infection, progressive tissue necrosis requiring revision surgery, deep vein thrombosis (DVT), loss of structural foot architecture, and risks secondary to regional or general anaesthesia.
JOURNEY
The clinical care journey begins with an urgent diagnostic evaluation, including neurovascular assessment and wound staging. Pre-procedure management involves infection control, offloading, and arterial imaging. Surgical or conservative interventions are then performed to debride non-viable tissue or re-establish blood flow. Post-procedure care focuses on structured wound healing, gradual weight-bearing progression, custom orthotic fitting, and long-term surveillance to prevent recurrence.
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