Table 1 US grading of intrinsic muscle injuries
From: A rare ultrasound case report: intramuscular tear of the sartorius muscle
Grade | US findings |
|---|---|
0 | No US image suggesting muscle injury |
1 | Small areas of damaged muscle tissue (< 5%) |
2 | Partial lesion (> 5–50%), which does not involve the entire muscle |
3 | Complete rupture of the muscle at the myotendinous junction |