From: Intraoperative rotational kinematics and its influence on postoperative clinical outcomes differ according to age in Unicompartmental knee Arthroplasty
Tibial internal rotation angle
Elderly
Non-elderly
P value
Extension~max Flexion
9.0 (11.4)
13.5 (11.1)
0.041*
 Extension~ 90°
3.8 (7.3)
5.8 (8.7)
0.215
 90° ~ max Flexion
5.2 (5.4)
7.7 (4.8)
0.013*