Inclusion criteria:
Age between 45 - 70,
Unilateral or bilateral knee pain and dysfunction, in bilateral knee pain, the knee with more pain will be cured,
Knee osteoarthritis with grade 2 and 3 Kellgren & Lawrence,
At least one active trigger point in muscles around knee that refer pain,
Knee pain more than 3 in VAS scale,
Ability to walk for 6 meters and more,
Disability more than 25 in WOMAC scale,
At least 10 degrees loss in knee flexion range of motion.
Exclusion criteria:
Neuropathic pain in lower limb,
Knee replacement surgery,
Surgery in other parts of lower limb in last 6 month.
Radicular pain in knee,
Neurologic diseases,
Rheumatoid Arthritis,
Steroid and analgesic injection in last 3 month in knee,
Fibromyalgia syndrome,
Patellar tendinopathy,
Inflammation or active infection signs in knee,
Pregnancy,
Diabetes,
Epilepsy,
Immune system diseases like AIDS, Cancer, Hepatitis,
Phobia of needle in dry needling technique,
Any treatment for trigger points in considering muscles in last 3 month,
Vascular disease associated with unusual bleeding,
Treatment with Anticoagulants,
Pain in lower limb associated with low back pain,
Fracture or any other orthopedic problem in involved lower limb,
Musculoskeletal disorders in other joints in lower limb (except osteoarthritis)
Physiotherapy sessions in last 3 month for knee joint.