. Author manuscript; available in PMC: 2013 Jun 21.

Published in final edited form as: J Biomed Mater Res A. 2010 Mar 1;92(3):913–921. doi: 10.1002/jbm.a.32303

TABLE II.

Histomorphometry

	Bone	Marrow	Fibrous tissue
Ongrowth
P-Ti	3 (0–3)	33 (21–50)	56 (45–76)
P-HA	51 (20–62)^a	33 (10–35)	15 (2–71)
E-HA	18 (5–25)^a	54 (32–68)^b	21 (17–64)^a
E-HA-collagen	21 (13–27)^a	53 (36–69)^b	21 (1–55)
0–500 µm
P-Ti	11 (10–16)	71 (52–77)	13 (12–17)
P-HA	18 (11–27)	65 (61–69)	9 (1–27)
E-HA	24 (11–28)^a	67 (51–75)	11 (4–16)
E-HA-collagen	19 (14–32)	67 (58–79)	4 (1–12)^a
500–1000 µm
P-Ti	11 (6–18)	80 (72–88)	0.1 (0–0.7)
P-HA	13 (10–29)	81 (69–85)	0 (0–0.2)
E-HA	19 (14–22)^a	75 (72–83)	0 (0–0.5)
E-HA-collagen	19 (14–27)	76 (62–79)	0.3 (0–2)

Density (percentage) of bone, marrow-like and fibrous tissue at the implant surface, concentric zone 0–500 µm and 500–1000 µm.

Median, interquartile ranges. n = 7.

P-Ti, plasma spray titanium alloy; P-HA, plasma spray hydroxyapatite coating; E-HA, electrochemical-assisted hydroxyapatite coating; E-HA-Col, electrochemical-assisted hydroxyapatite mineralised collagen coating.

p < 0.05 compared with titanium.

p < 0.05 compared with HA plasma.