Seventy-nine severe:limb injuries were, retrospectively reviewed to compare
the AO/ASIF and the Gustillo classifications. Specifically, the suitabilit
y of these classifications with respect to prognosis and management of thes
e cases was compared. A healed and stable wound was the ultimate outcome me
asure. Surrogate outcome measures used were: the time to healing; the numbe
r of anaesthetics until the wounds were healed; and the number of operation
s until the wounds were healed. Any change in lifestyle following the injur
y was also assessed. The primary healing rates of the AO/ASIF groups showed
significant (P < 0.001) inter-group differences. However, when the injurie
s were classified using the Gustillo system, the primary healing rates did
not show any differences between the groups. Also, differences in the other
outcome measures were most pronounced when using the AO/ASIF system. Impor
tantly, changes in lifestyle correlated with the injury score when using th
e AO/ASIF system (P < 0.05). Unlike the AO/ASIF system, the Gustillo system
was not applicable in 100% of cases. A modified AO/ASIF scoring system is
proposed which provides a good predictor of outcome.