Introduction: Knee osteoarthritis (KOA) affects a large number of people, the world over especially the female population in their old age. As no proper remedy is available on the date, people prefer non-invasive treatments to overcome this malady. Physiotherapy approaches have been recognized as beneficial to the affected. Though the current intervention packages offer satisfactory results, a better treatment modality is proposed in this report. The main objective is to determine the effect of Physical Therapy management in preventing Knee Osteoarthritis from mild to moderate. Aim: This study aims to evaluate the evolving trends in physical therapy management in the prevention of knee osteoarthritis from mild to moderate grade. Methods: We included systematic reviews published between December 2000 and December 2019 that examined any physical therapy intervention for patients with osteoarthritis of the knee. We included reviews on patients with osteoarthritis in general if results from patients with knee osteoarthritis could be extracted separately. We excluded reviews with major limitations. Instruments and scales for assessment of the methodological quality of Randomized Control Trials (RCT) in the reviews (Eg: Jadad scale, PEDro scale) were extracted and entered into the table of characteristics. Results: A total of 23 review articles have examined the evolving trends in Physical therapy management in the prevention of osteoarthritis of the knee. These studies show high-quality evidence that exercise improves physical function and reduces pain. The reviews did not find any effect on psychological outcomes. The overview of this review on physical therapy interventions for patients with osteoarthritis of the knee is based on a thorough literature search, assessment of study quality, and synthesis of findings. Conclusion: Exercise, including a weight reduction program for patients who are obese, seems to be a valuable treatment option for patients with pain and functional problems due to osteoarthritis of the knee