Comparative Biomechanical and Microstructural Analysis of Native versus Peracetic Acid-Ethanol Treated Cancellous Bone Graft

Table 2

Biomechanical donor-dependent data. Compressive strength (𝜎), Young’s modulus (𝐸), ultimate strain (𝜀) and fracture energy (FE) of native cancellous bone (NCB) and peracetic acid-ethanol treated cancellous bone graft (PE-treated CBA) cylinders from 4 donors (mean ± standard error; 𝑛=6 per donor; m: male, f: female).

	𝜎 (MPa)	𝜎 (MPa)	𝐸 (MPa)	𝐸 (MPa)	𝜀 (%)	𝜀 (%)	FE (N mm)	FE (N mm)
	NCB	PE	NCB	PE	NCB	PE	NCB	PE
Donor 1 (m)	8.6±1.2	3.0±1.4	473.2±67.2	157.8±91.8	2.4±0.1	3.0±0.4	205.2±29.0	81.0±29.6
	≙100%	≙35%	≙100%	≙33%	≙100%	≙125%	≙100%	≙39%
Donor 2 (m)	8.2±1.3	2.3±0.6	405.7±50.5	90.0±21.4	2.7±0.3	5.5±1.7	174.6±35.7	114.6±45.9
	≙100%	≙28%	≙100%	≙22%	≙100%	≙204%	≙100%	≙66%
Donor 3 (m)	2.7±0.5	3.0±0.9	132.3±33.2	126.9±41.3	3.1±0.6	3.5±0.2	76.9±12.3	98.5±24.8
	≙100%	≙111%	≙100%	≙96%	≙100%	≙113%	≙100%	≙128%
Donor 4 (f)	4.3±0.2	2.4±0.6	234.5±19.3	136.7±34.6	2.4±0.1	2.7±0.2	109.6±6.9	63.1±15.0
	≙100%	≙56%	≙100%	≙58%	≙100%	≙113%	≙100%	≙58%
Group mean	𝟓.𝟗±𝟎.𝟕	𝟐.𝟕±𝟎.𝟒	𝟑𝟏𝟏.𝟒±𝟑𝟒.𝟕	𝟏𝟐𝟔.𝟓±𝟐𝟑.𝟔	𝟐.𝟔±𝟎.𝟐	𝟑.𝟕±𝟎.𝟓	𝟏𝟒𝟎.𝟏±𝟏𝟓.𝟑	𝟖𝟗.𝟕±𝟏𝟓.𝟏
	≙ 100%	≙ 46%	≙ 100%	≙ 41%	≙ 100%	≙ 142%	≙ 100%	≙ 64%