Table 3.
Summary data for previous studies using the NexGen LPS-Flex implant
| Study | Mean age (years) | Sex (percent male) | Followup (mean years) | Survival rate (%) | Mean preoperative ROM (°) | Mean postoperative ROM (°) | Mean postoperative knee score | Mean postoperative HSS score | Progressive radiolucent lines (%) | Country |
|---|---|---|---|---|---|---|---|---|---|---|
| Kim et al. [17] | 67 | 7 | 3.0–4.8 | 99.6 | 117.3 | 135 | 95 | NR | 0.4 | South Korea |
| Huang et al. [16] | 70 | 16 | 2.3 | 100 | 110.3 | 138 | 96 | NR | 0 | Taiwan |
| Kim et al. [18] | 68 | 4 | 2.0–2.2 | 100 | 127 | 139 | 92 | 89 | 0 | South Korea |
| Weeden and Schmidt [42] | 63 | 40 | 1 | 100 | 120 | 132 | 92 | NR | 0 | USA |
| Tanavalee et al. [40] | 70 | 8 | 6–7.3 | 98.3 | 135 | 135 | 96 | NR | 4 | Thailand |
| Ng et al. [32] | 68 | 20 | 1.7–4.4 | 100 | 99 | 105 | NR | NR | NR | China |
| Cho et al. [6] | 64 | 13 | 3–6 | 96.8 | 109 | 129 | 87 | NR | 14 | South Korea |
| Current study | 68 | 6 | 0.9–8.6 | 52 | 121 | 132 | NR | 82 | 50 | South Korea |
HSS = Hospital for Special Surgery; NR = no report.