Table I.
Demographics from the studies included in the systematic review and meta-analysis
| Source | Study design | Country | Number of knees | Mean follow-up (yrs) (range) | Mean age (yrs) (range) | % Female | % OA | % Cement fixation | % Bilateral |
|---|---|---|---|---|---|---|---|---|---|
| Anderson et al19 | Prospective | USA | 298 | 5.4 (5.0 to 7.6) | 69.0 (39 to 87) | 59.7 | 95.3 | 94.0 | 7.9 |
| Bae et al18 | Retrospective | South Korea | 137 | 3.9 (2.0 to 7.1) | 66.6 (42 to 83) | 94.1 | 91.9 | 100.0 | 15.1 |
| Chinzei et al17 | Retrospective | Japan | 85 | 7.7 (6.0 to 12.0) | 70.2 (51 to 88) | 93.4 | 70.6 | 100.0 | 11.8 |
| Fan et al16 | Prospective | Taiwan | 58 | 5.4 (NR) | 65.1 (48 to 83) | 76.3 | 94.8 | 100.0 | 5.3 |
| Ishida et al15 | Prospective, randomised | Japan | 20 | 4.7 (4.0 to 5.1) | 71.0 (60 to 81) | 95.0 | 100.0 | NR | 0.0 |
| Karachalios et al14 | Retrospective | Greece | 284 | 6.7 (4.0 to 9.0) | 71.0 (52 to 84) | 82.0 | 75.0 | 100.0 | 26.2 |
| Kim et al13 | Prospective, randomised | South Korea | 92 | 2.6 (2.0 to 3.0) | 69.5 (55 to 81) | 92.3 | 100.0 | 100.0 | 100.0 |
| Vecchini et al12 | Prospective | Italy | 172 | 7.0 (4.0 to 10.0) | 71.0 (31 to 85) | 73.7 | 91.3 | 100.0 | 7.5 |
| Cumulative | - | - | 1146 | 5.7 | 69.4 | 78.0 | 87.8 | 98.4 | 20.6 |
NR, not reported