The Charcot foot: pathophysiology, diagnosis and classification

Area of Science:

• Orthopedics
• Diabetology
• Vascular Surgery

Background:

• Neuropathic foot changes occur in approximately 1% of the population.
• Diabetic neuropathic arthropathy diagnosis is frequently delayed, leading to severe outcomes such as amputation.
• Delayed diagnosis and treatment result in extensive patient morbidity, high healthcare costs, and prolonged surgical interventions.

Purpose of the Study:

• To increase awareness regarding the diagnosis of Charcot foot (diabetic neuropathic osteoarthropathy).
• To discuss differential diagnoses including erysipelas and peripheral arterial occlusive disease.
• To outline diagnostic pathways and classifications for Charcot foot.

Main Methods:

• Review of existing literature on Charcot foot diagnosis and pathogenesis.
• Presentation of clinical diagnostic pathways based on established classifications.
• Discussion of differential diagnoses for neuropathic arthropathy.

Main Results:

• Charcot foot pathogenesis involves micro-trauma in insensate feet with neurovascular changes.
• A combination of mechanical, vascular, and biological factors triggers the condition, often leading to misdiagnosis.
• Effective diagnosis and treatment can prevent extensive treatment programs and significant patient morbidity.

Conclusions:

• Early and accurate diagnosis of Charcot foot is essential to prevent devastating outcomes.
• Understanding the pathogenesis and differential diagnoses is key to appropriate management.
• Implementing defined clinical diagnostic pathways can improve patient outcomes and reduce healthcare burdens.