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KMID : 0950020070330010077
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Journal of Health Science & Medical Technology
2007 Volume.33 No. 1 p.77 ~ p.85
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The Effect of Electrical Stimulation to Facilitation the Healing on Induced Tibial Fracture in Rabbits
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Lee Jae-Hak
Yoon Bum-Chul
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Abstract
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Electrotherapy is one of the most important modality of Physical Therapy. Many therapists have been using electrotherapy to treat musculoskeletal diseases. Since 1950’s, researchers have been experimenting about effects of electrical stimulation to facilitate the healing of fractured bones. Taking into account that MES also increases blood flow in the muscle tissue and that blood flow has a close relationship to the fracture healing, it is likely that the use of MES may result in an improvement in the healing of fractured bones. We performed studies, to confirm the effects of electrical stimulation which is applied to rabbit’s fractured tibial bone. The object of the present study was to evaluate the effect of electrical stimulation on fracture healing, using rabbits model. 10 rabbits(3.9~4.5 ㎏) were used and divided into two groups, one group was treated by electrical stimulation and the other group was not given any treatment.
All rabbits received unilateral, transvers, mid-tibial, 3㎜ gapped osteotomics that were stabilized with double bar external fixator and splinter. Electrical stimulation was applied 1 hour per day for 2 weeks. We used the needle electrodes to stimulate the muscles selectively. Used electrical stimulator was Free Q. We employed X-ray to confirm the callus formation and used CT to verify bone mineral density at cross section of fractured areas of the bone. Fracture healing was not significantly increased in the experimental group on the radiological studies(p＞ .05). respectively, higher in the study group compared to the control group.
This result of the present study demonstrated that use of MES can enhance callus development and mineralization, with the consequent improvement of the healing bone.
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KEYWORD
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Fracture Healing, muscular electrical stimulation(MES), Rabbit
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