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The Effect of Light Therapy on Post-Surgical Pain
Sponsor: University of Arizona
Summary
This is a prospective randomized clinical trial study to investigate two main aspects. The first aspect is to investigate the efficacy exposure to green light emitting diode (GLED) in reducing postoperative opioid medications requirements by 20% as the primary outcome amongst patients scheduled for elective total knee replacement surgery (knee arthroplasty). The second aspect is to reduce postoperative pain by 30%, improve preoperative anxiety by 30%, and improve the quality of sleep pre and postoperatively by 30%. Seventy participants scheduled for elective unilateral primary total knee arthroplasty (total knee replacement) will be recruited from the pain clinic or from the orthopedic surgery clinics at Banner-University Medical Center by the pain or orthopedic physicians who are key personnel of this study. Once a participant is identified, he/she will meet with one of the research team members to explain the nature of the clinical trial and undergo a standard of care medical history gathering and baseline physical examinations. If the participant meets all the inclusion and have no exclusion criteria, he/she will be presented with a written consent in English to explain all the risk and benefits of this clinical trial. Once a participant signs a consent, he or she will be randomized by the study statistician, in a 1:1 ratio to either a GLED group (treatment) or white light-emitting diode (WLED) group (control). The participant will be trained on how to use the light device by one of the research team members. All participants will be exposed to either GLED or WLED for 8 weeks prior to surgery and two additional weeks after surgery.
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
70
Start Date
2018-09-05
Completion Date
2027-12-31
Last Updated
2025-07-31
Healthy Volunteers
No
Conditions
Interventions
Green LED light therapy
You will be asked to locate a dark room in your house 8 weeks prior to your surgery. You will place the provided LED strip near you on a flat surface and turn it on for 2 hours a day until the day of the surgery (8 weeks). You have the freedom to pick anytime during day or night to use the light. We will ask you to be as consistent as possible with your chosen time. You can engage in any activity to pass the time as long as it does not involve exposure to another light from an outside source (computers, TV, smartphones, tablets, etc.).
White LED light therapy
You will be asked to locate a dark room in your house 8 weeks prior to your surgery. You will place the provided LED strip near you on a flat surface and turn it on for 2 hours a day until the day of the surgery (8 weeks). You have the freedom to pick anytime during day or night to use the light. We will ask you to be as consistent as possible with your chosen time. You can engage in any activity to pass the time as long as it does not involve exposure to another light from an outside source (computers, TV, smartphones, tablets, etc.).
Locations (1)
Banner University Medical Center Tucson
Tucson, Arizona, United States