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Single-photon emission computed tomography-computed tomography (SPECT-CT) and arthroscopic findings in 33 patellae (subject numbers are shown in each cell)
| SPECT grade | Arthroscopic ICRS grade1 | |||||
|---|---|---|---|---|---|---|
| 0 | I | II | III | IV | Total | |
| 0 | 1 | 1 | 0 | 0 | 0 | 2 |
| 1 | 1 | 2 | 2 | 1 | 0 | 6 |
| 2 | 1 | 3 | 7 | 4 | 0 | 15 |
| 3 | 0 | 1 | 3 | 4 | 2 | 10 |
| Total | 3 | 7 | 12 | 9 | 2 | 33 |
Agreement between the two tests: ɣ = 0.625
1International Cartilage Repair Society (ICRS)
