Group 1 (n = 17) | Group 2 (n = 13) | Group 3 (n = 30) | P-value | |
---|---|---|---|---|
Femoral stem | ||||
Offset/Straight (n) | 9(53%) / 8(47%) | 4(31%) / 9(69%) | 29(97%) / 1(3%) | 0.00 |
Size of offset (mm) | 1.1 ± 1 | 1.4 ± 2.2 | 4.7 ± 1.7 | 0.00 |
Tibial stem | ||||
Offset/Straight (n) | 0(0%)/17(100%) | 0(0%)/13(100%) | 26(87%) / 4(13%) | 0.00 |
Size of offset (mm) | 0 | 0 | 3.7 ± 2.0 | 0.00 |
Metal Augments (n/size) | ||||
Femoral Distal medial | 16(94%) / 5.6 ± 2.5 | 9(69%) / 5 ± 4.1 | 26(87%) / 6 ± 3.3 | 0.16 / 0.38 |
Distal lateral | 15(88%) / 5.4 ± 2.8 | 8(62%) / 4.6 ± 4.3 | 28(93%) / 6.5 ± 3.5 | 0.03 / 0.2 |
Posteromedial | 17(100%) / 6.1 ± 2.1 | 11(85%) / 7.3 ± 3.9 | 24(80%) / 5 ± 3.2 | 0.15 / 0.08 |
Posterolateral | 17(100%) / 6.1 ± 2.1 | 12(92%) /6.5 ± 3.2 | 24(80%) / 5.8 ± 4.0 | 0.11 / 0.49 |
Anterior | 0 / 0 | 1(8%) / 0.4 ± 1.4 | 0 / 0 | 0.16 / 0.16 |
Tibial Medial | 6(35%) / 4.1 ± 5.9 | 9(69%) / 5.8 ± 4.9 | 16(53%) / 4.5 ± 5.3 | 0.18 / 0.49 |
Lateral | 4(24%) / 2.4 ± 4.4 | 2(15%) / 0.8 ± 1.9 | 8(27%) / 1.8 ± 3.6 | 0.72 / 0.67 |
Thickness of PE (mm) | 15.9 ± 2.9 | 16 ± 2.6 | 14.9 ± 3.3 | 0.29 |