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Understand the significance of plastic surgery in diabetic foot care, including amputation indications, anatomical facts, pathophysiology, and comprehensive wound management strategies.
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Plastic surgery and diabetic foot By Hanaa Tashkandi
Scope of the problem • *20% of diabetic patients enter the hospitals for foot problems. • *70% of major leg amputations are done in diabetic patients. • *50% of patients will need a contralateral lower limb amputation within two years.
Clinical presentation • Foot ulceration. • Foot infection. • Foot gangrene.
Indications for amputations in diabetic patients • **severe sepsis. • **major tissue loss. • **non reconstructable vascular disease.
facts • The energy expenditure in an amputated patient increase by 60%. • So because of that insufficient , most of the amputated diabetic patients are bed or wheel chair bound.
There are three compartments in the sole of the foot: • -medial , lateral and central. • -are separated by the medial and lateral septae.
**The floor : the planter fascia . **The roof the interosseous muscles and metatarsal bones.
Nerve supply : tibial nerve which enters the foot through the tarsal tunnel. And the sensibility is provided by the three terminal branches of the tibial nerve.
The dorsum of the foot: supplied by the dorsalis pedis artery. The planter of the foot: Supplied by the medial and lateral planter arteries.
note • The dorsalis pedis artery may be absent or rudimentary in 15% of the population.
Pathophysiology of diabetic foot • Peripheral neuropathy. • Peripheral vascular disease. • Hematological abnormalities. • Immune system impairment.
management • It is a multidisciplinary care,,, • i.e.; • general surgery. • plastic surgery. • vascular surgery.
Pre operative evaluation • Evaluation should focus on three major areas; • systemic CAD, pulmonary,renal,CVA. • Infection. • Neurological status. • Endocrine control.
Revascularization vs. amputation • Absolute indication for amputation: severe sepsis. marked tissue loss. critical cardiac and renal condition. previous experience with graft failure or thrombosis.
Wound management • Debridement . • Drainage of abscess. • Application of local antibacterial agents.
Soft tissue reconstruction • 1- management of weight bearing areas of the foot. • ---metatarsal heads. • ---the heal defect.
2-non weight bearing areas. • ---forefoot. • ---instep region. • ---posterior part of hindfoot (Achilles region) • ---dorsum of the foot.