Study type: Medical/biological study (experimental study)

Effect of 900MHz electromagnetic fields emitted from cellular phones on fracture healing: an experimental study on rats. med./bio.

Published in: Acta Orthop Traumatol Turc 2013; 47 (4): 273-280

Aim of study (acc. to author)

To examine the influence of an exposure to a 900 MHz electromagnetic field on the bone fracture healing in rats.

Background/further details

30 rats were divided into two groups (n=15 per group): a control group and an exposed group. The control group was kept under the same experimental conditions as the experimental group, but without exposure to an electromagnetic field (remark EMF-Portal: not clear if control group was sham exposed). The right tibial bones of the rats were broken by finger pressure. 5 rats from the exposure group and 3 rats from the control group were excluded from the study due to "bad" fractures, animal death or not analyzable histological slices.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 900 MHz
Exposure duration: 30 min/day, 5 days/week for 8 weeks

Exposure 1

Main characteristics
Frequency 900 MHz
Type
Exposure duration 30 min/day, 5 days/week for 8 weeks
Exposure setup
Exposure source
Distance between exposed object and exposure source 5 mm
Chamber rats were exposed in a PVC-restrainer put on the dipole antenna
Setup electromagnetic energy generator was used
Parameters
Measurand Value Type Method Mass Remarks
SAR 8 mW/kg - calculated - -
power density 1.04 mW/cm² maximum measured - -

Reference articles

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • during exposure
  • after exposure

Main outcome of study (acc. to author)

The x-rays and the histological slices showed that the fracture healing was significant worse in the exposed group compared to the control group. Additionally, the motility of the tibial bones was significantly lower in the exposed group than in the control group.
The authors conclude that an exposure to a 900 MHz electromagnetic field could have a negative effect on the bone fracture healing in rats.

Study character:

Study funded by

Related articles