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Intraoperative Modified Outerbridge Grade Distribution by Study Region.
| ROI | N | Grade 0 | Grade 1 | Grade 2 | Grade 3 | Grade 4 | % Intact Surface (Grade 0 or 1) |
|---|---|---|---|---|---|---|---|
| MFC | 21 | 1 | 17 | 2 | 1 | 0 | 86 |
| LFC | 20 | 4 | 12 | 4 | 0 | 0 | 80 |
| MT | 18 | 4 | 10 | 4 | 0 | 0 | 78 |
| LT | 22 | 3 | 10 | 7 | 2 | 0 | 59 |
ROI = regions of interest; MFC = medial femoral condyle; LFC = lateral femoral condyle; MT = medial tibial; LT = lateral tibial.
