Exteriorized colon anastomosis for unprepared bowel: An alternative to routine colostomy

Table 3 Colon Organ Injury Scale¹ (Moore et al, 1990)

Grade		Injury
I	Haematoma	Contusion or haematoma without devascularization
	Laceration	Partial thickness, no perforation
II	Laceration	< 50% of the circumference
III	Laceration	≥ 50% of the circumference without transection
IV	Laceration	Transection of the colon
V	Laceration	Transection of the colon with segmental tissue loss
	Vascular	Devascularised segment

¹Advance one grade for multiple injuries of the same organ.