Table 2. Comparison of Postoperative Clinical Outcomes and MRI Results.
| PLLA (n = 86) | PLLA-HA (n = 86) | p-value | |
|---|---|---|---|
| Clinical outcome | |||
| Lysholm score | 92.5 ± 7.6 | 92.9 ± 8.2 | 0.478 |
| Tegner activity score | 6.1 ± 1.3 | 6.2 ± 1.3 | 0.906 |
| IKDC SKF | 88.6 ± 10.0 | 89.9 ± 9.2 | 0.362 |
| Side-to-side difference on KT-2000 (mm) | 1.7 ± 1.5 | 1.3 ± 1.2 | 0.078 |
| Screw resorption (%) | 41.3 ± 12.0 | 79.3 ± 10.9 | < 0.001 |
| Tibial tunnel widening (total, %) | 41.3 ± 36.4 | 27.4 ± 29.2 | < 0.001 |
| Proximal | 79.2 ± 36.9 | 44.0 ± 37.7 | < 0.001 |
| Middle | 29.6 ± 16.6 | 24.7 ± 23.0 | 0.110 |
| Distal | 15.1 ± 8.8 | 13.4 ± 12.0 | 0.288 |
| Osteointegration | < 0.001 | ||
| Little | 19 (22.1) | 7 (8.1) | |
| Some | 59 (68.6) | 50 (58.1) | |
| Partial | 6 (7) | 21 (24.5) | |
| Good | 2 (2.3) | 8 (9.3) | |
| Foreign body reaction | < 0.001 | ||
| No reaction | 9 (10.5) | 63 (73.3) | |
| Edema | 66 (76.7) | 21 (24.4) | |
| Cyst | 11 (12.8) | 2 (2.3) |
Values are presented as mean ± standard deviation or number (%).
MRI: magnetic resonance imaging, PLLA: poly-L-lactic acid, HA: hydroxyapatite, IKDC SKF: International Knee Documentation Committee Subjective Knee Form.