Table 1.

Prespecified criteria for standardized primary amputation wound healing assessment on postoperative day 30 (±5 days).

Category	Criteria
Non-Healing	• Development of necrosis
	• Development of infection, including gangrene or abscess
	• Ulceration occurring within or adjacent to the surgical wound
	• Disruption or dehiscence of suture line
	• Drainage or exudate expressed from the suture line
	• Evidence of inflammatory response including swelling, cellulitis, or skin discoloration
	• Hematoma formation
	• Revision of the amputation to a more proximal level
Healing	• Re-epithelialization of tissue within the incision site
	• Absence of all criteria for non-healing wounds