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Classification of the duration of the effect of the intra-articular injection (N = 103).
| Arthroscopy (n = 46) | Non arthroscopy (n = 57) | |
|---|---|---|
| No effect | 4 (9%) | 0 (0%) |
| <1 week | 9 (20%) | 6 (11%) |
| 1 week to 3 months | 27 (59%) | 20 (35%) |
| ≥3 months | 6 (13%) | 31 (54%) |
