Table 1

Splenic injury scale as devised by the Organ Injury Scaling Committee of the American Association for the surgery of trauma13

GradeInjuryInjury description
IHaematomaSubcapsular, non-expanding <10% surface area
LacerationCapsular tear, non-bleeding, with <1 cm deep parenchymal disruption
IIHaematomaSubcapsular, non-expanding, 10%–50% surface area, intraparenchymal non-expanding <2 cm in diameter
LacerationCapsular tear, actively bleeding; parenchymal laceration 1–3 cm deep that does not involve a major or trabecular vessel
IIIHaematomaSubcapsular, >50% surface area or expanding; ruptured subcapsular haematoma with active bleeding; intraparenchymal haematoma >2 cm or expanding
LacerationLaceration >3 cm deep or involving trabecular vessels but not involving the hilar vessels
IVHaematomaRuptured intraparenchymal haematoma with active bleeding
LacerationLaceration involving segmental or hilar vessels producing major devascularisation (>25% of spleen)
VLacerationCompletely shattered spleen
VascularHilar vascular injury that devascularises spleen