Table 1. Preoperative Patient Characteristics.
| Characteristic | PLLA (n = 86) | PLLA-HA (n = 86) | p-value |
|---|---|---|---|
| Age (yr) | 31.1 ± 5.6 | 31.2 ± 7.3 | 0.860 |
| Sex (male/female) | 64/22 | 64/22 | 1.000 |
| Period from injury to operation (mo) | 3.6 ± 1.7 | 3.8 ± 1.5 | 0.396 |
| Clinical follow-up duration (mo) | 32.5 ± 5.9 | 31.0 ± 6.1 | 0.123 |
| MRI follow-up duration (mo) | 27.2 ± 3.4 | 26.8 ± 3.2 | 0.519 |
| Screw diameter (mm) | 8.2 ± 4.1 | 8.2 ± 4.2 | 0.715 |
| Screw length (mm) | 26.2 ± 2.3 | 26.0 ± 2.0 | 0.724 |
| Preoperative Lysholm score | 73.1 ± 14.6 | 72.2 ± 14.0 | 0.666 |
| Preoperative IKDC SKF | 64.2 ± 15.4 | 63.7 ± 11.4 | 0.831 |
| Preoperative Tegner activity score | 5.3 ± 1.1 | 5.3 ± 1.2 | 0.919 |
| Preoperative side-to-side difference on KT-2000 (mm) | 7.1 ± 1.3 | 7.0 ± 1.5 | 0.763 |
| Meniscus surgery | 0.471 | ||
| None | 44 | 39 | |
| Meniscal repair | 6 | 7 | |
| Partial meniscectomy | 36 | 40 |
Values are presented as mean ± standard deviation or number.
PLLA: poly-L-lactic acid, HA: hydroxyapatite, MRI: magnetic resonance imaging, IKDC SKF: International Knee Documentation Committee Subjective Knee Form.