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Modified MINORS scale of risk bias
| MINORS | Total UKA cases | Survival outcome of UKA | Dislocation cases | revision outcome | Risk of bias | |
|---|---|---|---|---|---|---|
| 1.Bae et al. [5]* | 12/16 | A | A | A | A | Low |
| 2.Choy et al. [11] | 11/16 | B | A | A | A | Low |
| 3.Kang et al. [6] | 12/16 | A | A | A | A | Low |
| 4.Kim et al. [13] | 10/16 | A | A | A | A | Low |
| 5.Tian et al. [7] | 9/16 | A | A | B | B | High |
| 6.Xue et al. [8] | 10/16 | A | A | B | B | Low |
| 7.Yoshida et al. [9] | 10/16 | A | A | A | B | Low |
