Table 4 Correlation coefficients between intraoperative tibial internal rotation and postoperative clinical scores in elderly patients (aged ≥75 years)
| Â | Tibial internal rotation | Â | |
|---|---|---|---|
Ex~full Flex | Ex~ 90° | 90° ~ full Flex | |
KOOS | |||
 Pain | −0.04 | −0.24 | 0.04 |
 Symptom | −0.09 | −0.25 | 0.03 |
 ADL | −0.04 | − 0.15 | 0.05 |
 Sports | 0.01 | −0.02 | 0.06 |
 QOL | − 0.05 | − 0.17 | 0.03 |
Knee Society functional score | −0.08 | 0.16 | −0.15 |
Knee flexion angle | 0.01 | −0.21 | 0.02 |