Histomorphometric Analysis of Callus Formation Stimulated by Axial Dynamisation in a Standardised Ovine Osteotomy Model

Table 2

Mechanical properties of external fixator configurations [30].

	One-plane fixation; (Stimulation groups)	Two-plane fixation; (Control group)
	unilateral external fixator	unilateral external fixator AND unilateral monotube ext. fixator
Axial stiffness	183 N/mm	388 N/mm
Torsional stiffness	2.5 Nm/deg	2.5 Nm/deg
Bending stiffness in mediolateral direction	2Nm/deg; (167 N/mm )	3 Nm/deg; (250 N/mm)
Bending stiffness in anterior-posterior direction	31 N/mm	170 N/mm

Estimated value. Comparative data for bending stiffness in mediolateral direction given in N/mm is missing in Krischak et al. (2002)