Osteoarthritis (OA) is a debilitating, degenerative disease affecting the articular cartilage of aging joints, it is a leading cause of pain and disability among adults over the age of 45. Pain is the primary symptom of this disease, which often leads to disability. As life expectancy increases, so does the number of people suffering from degenerative joint disease and especially from OA.

 Heat or electrical nerve stimulation in the form of TENS commonly used for pain relief and quadriceps exercise has been the main stay for the treatment of OA Knee. But the results achieved are not always satisfactory. Other forms of treatment technique has been used time and again with varying results. There is always room for different treatment technique which are simple, cost effective and patient acceptance.

 Pesanserinus is combination of tendinous insertions of sartorius, gracilis and semitendinosus muscles There is an association between pesanserine syndrome and  OA knee, with 20 to 46 percent of patients with symptomatic knee arthritis also having pes anserine syndrome. Pes anserinus tendinitis/bursitis is a frequent cause of knee pain in patients with knee OA which should be considered in patients with localized periarticular symptoms or signs. Valgus deformity increases the possibility of this condition by 5.2 times and collateral instability increases the development of tendinitis or bursitis by 6 times .

 Trigger point is a hyper irritable spot, a palpable nodule in the taut band of the skeletal muscle fascia. Jump sign is the characteristic response to the pressure on the trigger point. Trigger point therapy is a neuromuscular therapy designed to speedup recovery from injury, correct muscular imbalance and relieve pain. The physiotherapist will stretch the muscle and apply pressure to the area of muscle tightness or Knots. This helps to relieve muscle spasm and promote healing 

This study aims to find the efficacy of trigger release on pesanserine muscle in relieving pain, improving range of motion of knee join and improving functional activity in osteoarthritis knee patients.