FIGURE 1.

Starting from the first postoperative day, rats in HF-PEMF group were exposed to PEMFs (400 pps, a mean power output of 25.35 W), 10 minutes/day for two weeks (14 sessions). HF-PEMFs were generated by a Diapulse device. The electromagnetic filed was delivered through a drum-shaped head of 9 inches in diameter, placed above the treated area. Two rats at a time were placed in a 3-inch-high plastic box and covered with the diaphragm emitter. The drum-shaped head was positioned at a distance of 3 to 5 cm from rat bodies, to maximize the effect of PEMFs. HF-PEMF: High-frequency pulsed electromagnetic field.