| Total cases | Dislocation time from primary UKA (year) | Dislocation direction |
---|
< 2 | 2 to 5 | > 5 | Anterior | Posterior | Medial | Lateral |
---|
Bae et al. [5] | 67 | 37 | 16 | 14 | 36 | 28 | 3 | 0 |
Choy et al. [11] | 15 | 6 | 3 | 6 | 9 | 6 | 0 | 0 |
Kang et al. [6] | 22 | 8 | 10 | 4 | 10 | 11 | 0 | 1 |
Tian SQ et al. [7] | 4 | 3 | 1 | 0 | NA |
Xue et al. [8] | 3 | 2 | 1 | 0 | 1 | 2 | 0 | |
Yoshida et al. [9] | 10 | 7 | 3 | 0 | 5 | 2 | 0 | 2 |