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Table 1 Maximum force (Mean + SD), Effect Sizes and Quality Score of Included Studies

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

Mean maximum force (SD)
   Sample size 4 weeks after fracture   Quality score
Trial Location of fracture Treatment group Control group Treatment group Control group Effect Size PEDro/10 Jadad/5 QATRS/20
David et al Tibia (Mid portion) 62 62 a) 1630 (1020) 1340 (540) (1) 0.36 5 0 12
     a) 1120 (900) 1190 (570) (2) -0.09    
     b) 1110 (650) 1510 (820) (1) -0.30    
     b) 670 (680) 1020 (890) (2) -0.40    
Luger et al Tibia (Mid portion) 25 25 74.4 (43.1) 46.5 (20.2) (1) 0.82 7 3 17
Tajali et al Tibia (4 cm below tibial tubercle) 30 30 36.82 (7.42) 27.79 (6.14) (2) 1.34 7 1 15
Teng et al Radius 8 16* N/A N/A -- 6 2 13
  1. * 8 samples for He-Ne and 8 samples for Co2, (1) F Plan: Vertical (Sagital) Plan, (2) T Plan: Horizontal Plan, a) 2 (J) laser irradiation per session, b) 4 (J) laser irradiation per session