Knee osteoarthritis can make everyday movement more difficult, with symptoms such as pain, stiffness, and reduced physical function. As interest grows in approaches that do not rely solely on medication, researchers continue to examine how different non-drug strategies may affect these symptoms.
A recent analysis published in PLOS One examined 139 clinical trials involving nearly 10,000 people to compare different non-drug approaches for knee osteoarthritis. The analysis looked at 12 different strategies, including exercise, water-based therapy, knee braces, insoles, kinesiology tape, electrical stimulation, laser therapy, shock wave therapy, and ultrasound.
What the Analysis Examined
Rather than looking at just one treatment at a time, researchers used a method called a network meta-analysis. This approach allows researchers to compare multiple interventions across different clinical trials and estimate how they perform relative to one another. The treatments were evaluated across outcomes, including pain, stiffness, and physical function. The researchers found that some relatively simple approaches showed promising results across these measures.
Knee Braces
Knee braces ranked highly across several of the outcomes examined in the analysis. They were associated with improvements in pain, stiffness, and physical function. However, these findings should not be interpreted as meaning that a brace will have the same effect for everyone. The studies included in the analysis varied in their designs, participants, and treatment durations.
Water-Based Therapy
Hydrotherapy, which involves exercise or therapeutic activity performed in warm water, was particularly associated with improvements in pain. Water-based exercise may also provide a way for people to remain physically active while reducing some of the impact placed on the joints during movement.
Exercise
Regular exercise was another approach that showed consistent benefits in the analysis. The researchers found associations with improvements in both pain and physical function. Maintaining physical activity can also be an important part of supporting mobility and strength when appropriate for an individual’s circumstances.
Importantly, exercise does not have to mean high-impact activity. The appropriate type and intensity of movement can vary depending on symptoms, mobility, fitness level, and other factors.
What About High-Tech Treatments?
The analysis also examined several technology-based approaches designed to address symptoms associated with knee osteoarthritis. These included high-intensity laser therapy, shock wave therapy, ultrasound, and electrical stimulation. High-intensity laser therapy and shock wave therapy showed potential benefits in certain areas of the analysis. These approaches are of interest because they use different forms of physical energy as part of an intervention for musculoskeletal conditions. The results suggest that some technology-based therapies may have a role in certain aspects of knee osteoarthritis management, although the evidence varies between interventions and outcomes.
Ultrasound, on the other hand, generally ranked toward the lower end of the comparisons included in the analysis. This provides an example of why it can be useful to examine several approaches together rather than assuming that every commonly used intervention produces similar results. At the same time, a ranking within a network meta-analysis should not automatically be interpreted as a definitive statement that one therapy will or will not work for an individual. The analysis brought together studies with differences in sample size, treatment duration, study design, patient characteristics, and outcome measurements. Those differences can affect how interventions compare with one another.
There is also an important distinction between an approach showing a statistical benefit in clinical research and that approach being appropriate for every person with knee osteoarthritis. Factors such as the severity of symptoms, physical limitations, existing health conditions, and individual goals can all influence what may be considered appropriate. For these reasons, the findings are best viewed as part of the broader evidence surrounding non-drug approaches to knee osteoarthritis rather than as a universal treatment recommendation.
What This Means for Knee Health
Knee osteoarthritis management is not necessarily about finding one universal solution. Different people may respond differently to different approaches. The recent analysis adds to the evidence that exercise, water-based therapy, and knee bracing are important areas for continued research when looking at non-drug approaches to knee osteoarthritis. If you are experiencing persistent knee pain or stiffness, discussing your symptoms and activity options with a qualified healthcare professional can help determine what approaches may be appropriate for you. For a more personalized advice, reach out to us. Our goal is to help you look better, feel better and perform better. Get started today!
