Table 2 Comparison between both readers with respect to MRI grading and arthroscopic grading of the cartilage
MRI grading of both MRI readers (reader 1/reader 2) | |||||
|---|---|---|---|---|---|
Arthroscopic grading | Grade 0 | Grade 1 | Grade 2 | Grade 3 | Grade 4 |
Grade 0 | 143/138 | 6/10 | 8/8 | 0/1 | 1/1 |
Grade 1 | 8/7 | 1/1 | 0/1 | 0/0 | 0/0 |
Grade 2 | 15/13 | 0/0 | 11/14 | 3/2 | 2/2 |
Grade 3 | 1/2 | 0/0 | 3/3 | 8/7 | 2/2 |
Grade 4 | 1/1 | 0/0 | 3/1 | 3/2 | 23/22 |