Table 2 Comparison between US grading score before and after PRP injection
From: Role of Platelet Rich Plasma (PRP) injection in treatment of rotator cuff tear
US grading of tear | Before injection | After injection | Chi-square | |||
|---|---|---|---|---|---|---|
N | % | N | % | χ2 | p value | |
G1 | 0 | 0.00 | 16 | 53.33 | 40.800 | < 0.001* |
G2 | 4 | 13.33 | 12 | 40.00 | ||
G3 | 18 | 60.00 | 2 | 6.67 | ||
G4 | 8 | 26.67 | 0 | 0.00 | ||
Total | 30 | 100.00 | 30 | 100.00 | ||