Table 3.
Beaded | Large pore foam | Small pore foam | Beaded | Large pore foam | Small pore foam | ||||
---|---|---|---|---|---|---|---|---|---|
MAR bone ingrowth (μm/day) | MAR periprosthetic bone (μm/day) | ||||||||
0 | 2.2 ± 1.0 | 1.9 ± 0.7 | 3.0 ± 0.6 | 0 | 2.3 ± 0.9 | 2.3 ± 0.5 | 3.1 ± 0.2 | ||
3 | 2.7 ± 0.6 | 3.4 ± 0.3 | 3.4 ± 0.7 | 3 | 3.2 ± 0.3 | 3.4 ± 0.3 | 3.1 ± 0.4 | ||
6 | 2.1 ± 0.2 | 2.9 ± 0.4 | 2.8 ± 0.5 | 6 | 2.6 ± 0.2 | 2.7 ± 0.3 | 2.7 ± 0.3 | ||
12 | 2.3 ± 0.4 | 2.7 ± 0.5 | 2.5 ± 0.4 | 12 | 2.5 ± 0.3 | 2.0 ± 0.4 | 2.0 ± 0.4 | ||
MAR bone ingrowth (μm/day) | MAR periprosthetic bone (μm/day) | ||||||||
Time 0 | Distal | 1.8 ± 0.6 | 2.2 ± 0.8 | 3.1 ± 0.6 | Time 0 | Distal | 2.2 ± 0.9 | 2.1 ± 0.6 | 2.8 ± 0.5 |
Mid | 1.5 ± 0.0 | 1.1 ± 0.6 | 2.3 ± 0.0 | Mid | 2.4 ± 1.0 | 2.3 ± 0.8 | 3.0 ± 1.0 | ||
Prox | 2.4 ± 1.4 | 1.6 ± 0.0 | 3.8 ± 0.3 | Prox | 2.8 ± 1.3 | 2.4 ± 0.9 | 3.4 ± 0.9 | ||
3 wks | Distal | 3.4 ± 1.1 | 3.5 ± 0.9 | 3.2 ± 0.8 | 3 wks | Distal | 3.6 ± 1.1 | 3.6 ± 0.6 | 3.6 ± 1.0 |
Mid | 2.3 ± 0.7 | 2.5 ± 0.9 | 3.8 ± 1.6 | Mid | 3.1 ± 1.0 | 3.3 ± 0.6 | 2.6 ± 0.6 | ||
Prox | 2.4 ± 0.9 | 3.2 ± 1.2 | 3.6 ± 0.6 | Prox | 2.9 ± 0.7 | 3.2 ± 0.8 | 3.0 ± 0.5 | ||
6 wks | Distal | 2.0 ± 0.6 | 3.4 ± 0.6 | 3.1 ± 0.7 | 6 wks | Distal | 2.5 ± 0.6 | 3.0 ± 0.7 | 2.7 ± 0.6 |
Mid | 2.3 ± 0.5 | 2.3 ± 0.4 | 2.6 ± 0.8 | Mid | 2.8 ± 0.7 | 2.7 ± 0.5 | 2.8 ± 0.5 | ||
Prox | 2.0 ± 0.5 | 2.7 ± 0.5 | 2.9 ± 0.9 | Prox | 2.5 ± 0.8 | 2.3 ± 0.5 | 3 ± 0.6 | ||
12 wks | Distal | 2.4 ± 0.7 | 2.7 ± 0.7 | 2.3 ± 0.6 | 12 wks | Distal | 2.6 ± 0.5 | 2.2 ± 0.9 | 1.8 ± 0.3 |
Mid | 2.4 ± 0.6 | 2.9 ± 0.8 | 2.6 ± 0.6 | Mid | 2.4 ± 0.5 | 2.2 ± 0.5 | 2.2 ± 1.0 | ||
Prox | 2.1 ± 0.8 | 2.5 ± 0.6 | 2.6 ± 0.8 | Prox | 2.5 ± 0.5 | 1.7 ± 0.4 | 2.1 ± 0.6 |