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. Author manuscript; available in PMC: 2013 Jun 5.
Published in final edited form as: J Orthop Res. 2009 Aug;27(8):996–1001. doi: 10.1002/jor.20850

Table 2.

Results from Histomorphometry

Percentage Tissue Ongrowth
Percentage Tissue Volume in the Gap (0–750 μm)
Bone Fibrous Tissue Bone Marrow Cartilage Bone Fibrous Tissue Bone Marrow Cartilage
HA Control 27 (16–37) 65 (43–87)* 7 (−6–21) 1 (0–2) 18 (12–24) 51 (30–73)*** 29 (8–49) 2 (0–4)
HA Crack 41 (33–48)* 9 (−6–24) 51 (36–65)** 0 (0–0) 22 (19–24) 10 (−2–34) 66 (51–81)**** 2 (−2–6)

Data is presented as mean and 95% confidence interval.

*

p=0.001;

**

p=0.002;

***

p=0.008;

****

p=0.01.