This double-blind study examined the effects of postoperative nonthermal pulsed high-frequency electromagnetic fields on edema formation and bruise healing in boys undergoing orchidopexy. Treatment involved exposure 3 times daily for the first 4 days following surgery. Significant effects with respect to rate of bruise resolution were reported in patients receiving the treatment relative to controls.

R.H.C. Bentall H.B. Eckstein, A Trial Involving the Use of Pulsed ElectroMagnetic Therapy on Children Undergoing Orchidopexy, Z. Kinderchir, 17(4), 1975, p. 380-389.