. 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 I.

Mechanical Testing

	Ultimate Shear Strength (MPa)	Apparent Shear Stiffness (MPa/mm)	Total Energy Absorption (J/m²)
P-Ti	0.0 (0.0–0.3)	0.0 (0.0–1.3)	0 (0–45)
P-HA	2.1 (1.5–3.2)^a,^b	7.8 (4.2–17.9)^a,^b	535 (213–574)^a,^b
E-HA	2.0 (0.7–3.4)^a	9.0 (2.7–16.6)^a	339 (92–618)^a
E-HA-Col	0.5 (0.1–2.1)	2.5 (0.6–8.9)	73 (7–456)

Data presented as median and 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 P-Ti.

p < 0.05 compared with E-HA-Col.