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Table 3 MRI-based classification system of muscle injuries and resulting lay-off time [3, 4]

From: Imaging of hip and thigh muscle injury: a pictorial review

Grade

MRI finding

Lay-off time (days)

0

Normal MRI

8 ± 3

1

Edema (Fig. 2)

17 ± 10

2

Partial tear (Figs. 3 and 4)

22 ± 11

3

Complete tear (Fig. 5)

73 ± 60