Hello, The problem is not in your knee rather it seems you have a Spinal problem which we term as Radiculopathy. You should get yourself examined by a Medical Doctor / Spine Surgeon for evaluation and most likely an MRI Spine to diagnose your problem. #Radiculopathy describes a range of symptoms produced by the pinching of a nerve root in the spinal column. #The pinched nerve can occur at different areas along the spine (cervical, thoracic or lumbar). #Symptoms of radiculopathy vary by location but frequently include pain, weakness, numbness and tingling. #A common cause of radiculopathy is narrowing of the space where nerve roots exit the spine, which can be a result of stenosis, bone spurs, disc herniation or other conditions. #Radiculopathy symptoms can often be managed with nonsurgical treatments, but minimally invasive surgery can also help some patients. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Kalpajit Banik, Emergency Medicine Specialist