Table 1

Correlation between radiographic, clinical assessments, and normalised TI (ΔT_m, ΔT_l)

	Normalised T_m			Normalised T_l
	Mean value (SD)	Correlation coefficient	p Value	Mean value (SD)	Correlation coefficient	p Value
Student’s t test, Kruskal-Wallis test, Pearson’s correlation coefficient test. p<0.05, *p<0.01.
Distance of MTFJ		0.548	<0.001**		0.232	NS
Distance of LTFJ		0.106	NS		0.247	NS
Present pain			<0.001**			<0.001**
Past pain			<0.001**			<0.001**
Tenderness			<0.001**			0.001**
Joint swelling			0.006**			0.001**
Local heat			<0.001**			0.019*
McMurray test			0.001**			0.001**
Lachmann test			NS			NS
Instability of collateral ligaments			0.001**			0.002**
Walking ability
Walking and standing unlimited	0.62 (0.82)		<0.001**	1.98 (6.31)		0.017*
5–10 Blocks, standing >50 min	0.31 (0.71)			1.02 (0.82)
1–5 Blocks, standing 15–50 min	0.19 (0.74)			0.85 (0.81)
Walking <1 block	0.48 (1.08)			0.71 (0.84)
Stair climbing ability
No problem	0.66 (0.80)		<0.001**	1.52 (5.79)		0.005**
Slightly impaired	0.45 (0.87)			1.38 (0.8)
One step at a time	0.16 (0.72)			0.93 (0.86)
Impossible	1.3 (0.42)			0.65 (092)
Knee operation experience			NS			NS
Range of knee motion
Flexion		−0.654	<0.001**		−0.666	0.004**
Extension		−0.435	<0.001**		−0.486	0.008**
Thigh girth		−0.479	0.015*		−0.472	0.027*