Table 2.

Summary of the means, variances and probabilities of the different groups for the macroscopic, radiological and microscopic parameters

	Groups	Number of samples	Total	mean	Variance	P value
Macroscopic Score	G 1	6	10. 4	1. 73	0. 122
	G 2	6	20. 7	3. 45	0. 215	< 0. 05
	G 3	6	32. 4	5. 4	0. 168
	G 4	6	39. 6	6. 6	0. 248
Radiological Score	G 1	6	3. 5	0. 583	0. 441
	G 2	6	18. 25	3. 041	0. 635	<0. 05
	G 3	6	37	6. 166	0. 591
	G 4	6	49. 75	8. 29	0. 235
icroscopic Score of cartilage	G 1	6	18	3	0. 5
	G2	6	46	7. 66	2. 16	< 0. 05
	G3	6	83	13. 83	1. 066
	G 4	6	121. 5	20. 25	1. 075