Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 1 The distribution of the implants per age decade and per BMI class in ST and DT versions of all three pairs
Apta | Apta-fix | Hydra | Hydra-fix | Recta | Recta-fix | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | N | % | N | % | N | % | |
Age per decade | ||||||||||||
< 40 | 1 | 0.1 | 11 | 1.7 | 8 | 0.5 | 0 | 0 | 8 | 1.3 | 0 | 0 |
40–49 | 45 | 2.3 | 47 | 7.5 | 44 | 2.6 | 27 | 3.9 | 16 | 2.4 | 4 | 2.8 |
50–59 | 219 | 11 | 144 | 22.9 | 165 | 9.9 | 96 | 13.9 | 75 | 11.3 | 21 | 13.8 |
60–69 | 624 | 31.5 | 236 | 37.5 | 570 | 34.1 | 257 | 37.2 | 197 | 29.8 | 53 | 34.9 |
70–79 | 885 | 44.6 | 163 | 25.9 | 703 | 42.1 | 262 | 37.9 | 296 | 44.7 | 69 | 45.4 |
≥ 80 | 210 | 10.6 | 28 | 4.5 | 181 | 10.8 | 49 | 7.1 | 70 | 10.6 | 5 | 3.3 |
BMI class | ||||||||||||
Underweight | 10 | 0.5 | 0 | 0 | 9 | 0.5 | 3 | 0.4 | 4 | 0.6 | 0 | 0 |
Normal weight | 645 | 32.3 | 124 | 19.7 | 352 | 21.1 | 103 | 14.9 | 229 | 34.6 | 61 | 40.1 |
Overweight | 850 | 42.8 | 270 | 42.9 | 520 | 31.1 | 234 | 33.9 | 121 | 18.3 | 61 | 40.1 |
Obese | 409 | 20.5 | 208 | 33.1 | 213 | 12.7 | 168 | 24.3 | 121 | 18.3 | 49 | 32.2 |
Missing data | 70 | 3.5 | 27 | 4.3 | 577 | 34.5 | 183 | 26.5 | 147 | 22.2 | 8 | 5.3 |