Effects of low power laser irradiation on bone healing in animals: a meta-analysis

Table 6 Study Characteristics of Selected Experimental Controlled Anima Studies on He-Ne Low Level Laser Irradiation Effects on Bone Healing

Authors	Laser Output (mw)	Distance between Producer and Skin (cm)	Irradiation Time per Day (min)	Number of treatment sessions	Irradiated energy per session	Total Irradiated Energy
David et al., 1996	10	N/A	N/A			2 week	4 week	6 week
				(2 week) 6	0	0	0	0
				(4 week) 13	2	12	26	40
				(6 week) 20	4 (J) every other day	24	52 (Joules)	80
Luger et al., 1998	35	20	** 30	14	***	***
					21 J (each area)	294 (J) (each area)
					63 J (in total)	882 (J) (in total)
Tajali et al., 2003	2	N/A	** 30	14	1.2 (J/cm2)	16.8 (J/cm2) ***
				21		5.2 (J/cm2)
				28		33.6 (J/cm2)
Teng et al., 2006	N/A	N/A	10	35	***	***
					He-Ne: 16.8 (J/cm2)	He - Ne: 588 (J/cm2)
					Co2: 90 (J/cm2)	Co2: 3150 (J/cm2)

** Including 10 minutes on fracture area, 10 minutes on the area above the point of fracture, and 10 minutes on the area below the fracture. *** Meta analysis authors calculated amount of irradiated energy based on the articles data with this equation [43]:
Set Power (w) * Time (s) = Total Amount of Energy (J)
Total Amount of Energy/Treatment Surface (cm2) = Energy Density (J/cm2)

ISSN: 1749-799X