Clinical classification and treatment of acute limb ischemia (based on the Rutherford classification)

Table 3.18-4. Clinical classification and treatment of acute limb ischemia (based on the Rutherford classification)
Grade/category	Prognosis	Clinical features		Treatment
Grade/category	Prognosis	Sensory loss	Motor deficit	Treatment
I. Viable	Not immediately threatened	None	None	Thrombolysis or surgery
II. Threatened
IIa. Marginally	Salvageable if promptly treated	None or minimal (toes)	None	Thrombolysis or surgery
IIb. Immediately	Salvageable if promptly revascularized	More than toes	Mild or moderate	Surgery, may be combined with thrombolysis
III. Irreversible	Inevitable high-level amputation or permanent nerve damage	Profound, anesthetic	Profound, paralysis (rigor)	Primary amputation
Adapted from J Vasc Surg. 1997;26(3):517-38 and Eur Heart J. 2011;32(22):2851-906.