Healing of surgically created defects in the equine superficial digital flexor tendon: effects of pulsing electromagnetic field therapy on collagen-type transformation and tissue morphologic reorganization.

This research explores the impact of pulsing electromagnetic field therapy on the healing of intentionally created injuries in the superficial digital flexor tendons of horses. It found that although this therapy significantly delayed the maturation of the tissues formed within the defect, it did not significantly affect collagen-type transformation.

Research Methodology

• The scientists worked with 20 horses, creating surgical defects in both front superficial digital flexor tendons of each horse.
• One tendon from each horse was exposed to pulsing electromagnetic field (PEMF) therapy for two hours per day, while the other tendon was used as a control (did not receive PEMF treatment).
• The impact of the PEMF therapy was evaluated at various points during the healing process – specifically, post-surgical weeks 2, 4, 8, 12, and 24. Evaluations were done via histological examinations and immunofluorescent tests.

Findings of the Study

• The study found that the PEMF therapy significantly postponed the maturation of the tissue within the tendon defect. This delay was evident in the histologic examinations conducted at 8 and 12 weeks post-surgery.
• The collagen transformation, which is an important part of the tendon healing process, was also found to be delayed by the PEMF therapy. However, this delay was not statistically significant.

Conclusions and Implications

• This research suggests that while PEMF therapy can affect the healing process of tendon injuries in horses, it might not have a significant impact on the collagen transformation. This aspect plays a key role in the restoration of the tendon’s functional structure.
• The findings might signify that while PEMF may delay certain aspects of healing, it may not decisively alter the overall healing journey of tendon defects.
• Further studies on larger samples and over longer periods may be necessary to understand the full impact of PEMF therapy in such cases and clarify the reasons behind these observed delays in the healing process.