The Effects of Using Photobiomodulation Led Wrap on Joints with Osteoarthritis

Background: Canine osteoarthritis (OA) is a progressive degenerative disease, which can have a malign effect on quality of life. Clinical signs are often managed using nonsteroidal anti-inflammatory drugs (NSAIDs). However, a multi-modal approach is desired which can include analgesic medication, disease-modifying OA agents, weight management, exercise modification, physical rehabilitation modalities, environment modifications, and surgical procedures. However, more recently, photobiomodulation therapy (PBMT), also known as low-level laser (light) therapy (LLLT) has become a popular modality in OA management.

Materials and Methods: To investigate the potential use of PBMT, an LED wrap was trialled on 13 canine patients (4–13 years) diagnosed with lower limb OA. A set of baseline measurements (repeated weekly for 3 weeks) were collected from each participant before the wrap was applied to the affected joint for a total of 11 weeks. Measurements included limb circumference, joint range of motion using a goniometer, and dynamic movement was recorded with a standard pathway and Helsinki pain score. Further measurements were taken after 4 and 11 weeks of using the wrap.

Results: A paired-sample t-test determined that there was a significant (p < 0.001) difference in stifle measurement between the baseline and week 11 of the treatment plan. No significant difference was detected between the baseline measurement and week 4 of the treatment.

Conclusion: These results suggest improved mobility after LED wrap use; however, variability within the participant group reduced the reliability of the further analysis. In addition, clinicians observed increased fluidity in movement while owners reported improved clinical signs.

Publication History

Article published online:
12 September 2025