Table 1.

Total knee rotation measured at 0°, 30°, 45°, 60° and 90° of knee flexion with 3 nm of torque

	Total rotation (°)
Knee flexion (°)	Skin pointer	Nail	Pearson's r	r P-value	t-test P-value
0	23.88 ± 25.99	16.33 ± 17.32	0.92	0.000	0.032
30	41.70 ± 15.49	33.06 ± 14.66	0.63	0.037	0.042
45	48.97 ± 16.97	40.30 ± 11.20	0.81	0.002	0.030
60	45.73 ± 17.45	34.70 ± 9.45	0.86	0.001	0.008
90	29.21 ± 10.89	21.15 ± 6.75	0.69	0.019	0.016