Table 1.
Demographic data and clinical scores of patients of the single bundle posterior cruciate ligament reconstruction group and double bundle posterior cruciate ligament reconstruction group
| Parameters | SB | DB | P |
|---|---|---|---|
| Number of patients | 65 | 33 | |
| Male: female | 42:18 | 22:8 | 0.742 |
| Average age (year) | 33.6±9.5 | 31.5±7.6 | 0.273 |
| Height (cm) | 177.0±13.6 | 182.2±16.1 | 0.096 |
| Weight (kg) | 81.3±6.4 | 83.6±7.6 | 0.118 |
| Causes of injuries | |||
| Car accident | 33 | 19 | 0.532 |
| Sports injury | 27 | 11 | 0.431 |
| Associated injuries | |||
| Meniscal tear | 10 | 6 | 0.723 |
| Partial meniscectomy | 6 | 4 | |
| Meniscal suture* | 4 | 2 | 0.066 |
| Cartilage injury† | 11 | 5 | 0.823 |
| Interval between injury and operation (month) | 4.5±1.9 | 5.0±2.1 | 0.238 |
Preoperative data show no statistically-significant difference between the two groups. *Fisher’s exact test was employed because cells have expected count <5, †Cartilage injury of Grade 1 or 2 by International Cartilage Repair Society Grading System. SB=Single bundle, DB=Double bundle