Table 3
Radiographic pre- and postoperative data.
| Cementless group (n = 41) | Cemented group (n = 68) | p | |
|---|---|---|---|
| Radiographic measurements | |||
| HKA | |||
| Preoperative | 174 (8) | 175 (9.0) | 0.50 |
| Postoperative | 179 (3) | 178 (3.5) | 0.05 |
| LDFA | |||
| Preoperative | 91 (3) | 92 (3) | 0.35 |
| Postoperative | 89 (3) | 89 (2) | 0.34 |
| MPTA | |||
| Preoperative | 88 (4) | 87 (4) | 0.73 |
| Postoperative | 89 (2) | 89 (3) | 0.05 |
| HKS | |||
| Preoperative | 6 (1) | 6 (1) | 0.35 |
| Postoperative | 7 (1) | 6 (1) | 0.39 |
| Tibial slope | |||
| Preoperative | 86 (3) | 86 (3) | 0.28 |
| Postoperative | 86 (3) | 86 (3) | 0.2 |
| CATON index | |||
| Preoperative | 0.95 (0.15) | 0.90 (0.15) | 0.86 |
| Postoperative | 0.95 (0.2) | 0.90 (0.2) | 0.08 |
| Ahlbäck stage | 3 (1) | 3 (1) | 0.18 |
| Radiolucent lines (RL) | |||
| Standard RL | 13 (31.7%) | 30 (44.1%) | 0.2 |
| Progressive RL | 0 (0%) | 1 (1.5%) | 0.43 |
| EWALD score | |||
| ≤ 4 | 36 (87.8%) | 60 (88.2%) | |
| 5–9 | 5 (12.2%) | 7 (10.3%) | 0.71 |
| ≥ 10 | 0 (0%) | 1 (1.5%) |
HKA: Hip Knee Ankle angle, LDFA: Lateral Distal Femoral Angle, MPTA: Medial Proximal Tibial Angle, HKS: Hip Knee Shaft. Variables are expressed as means per group with standard deviation into bracket for radiographic measurements, and number with percentages into brackets for radiolucent lines.
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