Abstract
To assess the effect of magnetic field in experimental tendon injuries, ten clinically healthy adult indigenous dogs were divided into two equal groups (control and experimental). The left superficial digital flexor tendon was exposed and three windows of 6 mm thickness, 3 mm length, and 2 mm intervals were made under general anesthesia. In the experimental group, the dogs were subjected to a magnetic field of 6 × 800 G for 30 days. The tendon biopsy was collected from the site of operation on the postoperative day 30. Histomorphological changes indicated low rate of inflammatory cells, high rate of mature fibroblast, and increased normal collagen fibers, and these were better in the experimental group. The biomechanical test revealed that the tendons of the dogs in the experimental group were more resistant than tendons of the dogs in the control group. The result of this study indicated that magnetic field therapy reduced edema and local swelling, enhanced proliferation of fibroblasts, and regulated arrangement of collagen fibers, providing a good noninvasive physical therapy for tendinous injuries.
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