Table 8: Severity of Z joint osteophyte formation per animal*

Table 8

Severity of Z joint osteophyte formation per animal * *

Weeks released Controls (SD) 1 week (SD) 4 week (SD) 8 week (SD)

0 N/A 0.8 (0.4) 1.6 (0.3) 1.5 (N/A)

1 0.2 (0.2) 0.6 (0.1) 1.0 (0.8) 1.7 (0.8)

2 0.5 (0.6) 0.7 (0.6) 0.7 (0.7) 2.1 (0.6)

4 0.4 (0.3) 0.8 (0.5) 0.4 (0.1) 1.8 (0.4)

8 1.0 (0.4) 1.2 (0.7) 1.2 (0.9) 2.2 (1.0)

12 0.7 (0.9) 0.5 (0.4) 1.3 (0.9) 2.3 (0.5)

16 0.9 (1.0) N/A N/A N/A

Average 0.6 (0.7) 0.8 (0.5) 1.0 (0.7) 2.0 (0.6)

KW, Kruskal-Wallis statistic.

*A significant difference was found among groups (KW = 29.86, P < .0001).

Weeks released	Controls (SD)	1 week (SD)	4 week (SD)	8 week (SD)


0	N/A	0.8 (0.4)	1.6 (0.3)	1.5 (N/A)

1	0.2 (0.2)	0.6 (0.1)	1.0 (0.8)	1.7 (0.8)

2	0.5 (0.6)	0.7 (0.6)	0.7 (0.7)	2.1 (0.6)

4	0.4 (0.3)	0.8 (0.5)	0.4 (0.1)	1.8 (0.4)

8	1.0 (0.4)	1.2 (0.7)	1.2 (0.9)	2.2 (1.0)

12	0.7 (0.9)	0.5 (0.4)	1.3 (0.9)	2.3 (0.5)

16	0.9 (1.0)	N/A	N/A	N/A

Average	0.6 (0.7)	0.8 (0.5)	1.0 (0.7)	2.0 (0.6)