Higher frequency of hamstring injuries in elite track and field athletes who had a previous injury to the ankle - a 17 years observational cohort study

Table 1 Revised criteria for the classification of acute injury of the lateral ligament complex of the ankle compared to the uninjured side. Malliaropoulos et al. Foot Ankle Clinics 2006 Sep; 11(3):497–507

Grade	Decreased ROM	Edema difference	Stress radiographs
I	Up to 5 degrees	Up to 0.5 cm	Normal
II	5 to 10 degrees	0.5 cm to 2 cm	Normal
IIIA (III)	More than 10 degrees	More than 2 cm	Normal
IIIB (IV)	More than 10 degrees	more than 2 cm	Laxity greater than 3 mm

ISSN: 1757-1146