This study explores the effectiveness of a novel treatment approach for knee osteoarthritis (OA) by comparing the combined use of a new device, "Knee Sync Partner," which provides electrical knee traction with stimulation and strengthening exercises, to traditional strengthening exercises alone. Knee osteoarthritis is a leading cause of chronic pain and disability worldwide, significantly impacting the quality of life for many individuals, especially with the growing elderly population.

While strengthening exercises are a well-established treatment for improving joint stability and mobility in knee OA patients, the potential benefits of integrating electrical stimulation and traction therapy remain underexplored. This research addresses the gap by conducting a randomized controlled trial to assess whether this combined approach leads to superior outcomes in terms of pain relief, functional improvement, and joint health. The findings could provide valuable insights into more effective, non-invasive management strategies for knee OA, expanding therapeutic options in physical therapy.

Inclusion Criteria:

• having pain in knee for more than 3 months in most days of week
• age between 40 and 70 years
• patient who filled Kellgren-Lawrence radiographic criteria

Exclusion Criteria:

• joint injection in the previous three months.
• The exclusion criteria were patients who had inflammatory arthritis
• osteoarthritis of the hips.