Detective Harlee Santos (Jennifer Lopez) is a single mother from New York City, New York. She joins the FBI's anti-corruption task force, whilst dealing with her own financial problems by bribing officers in order to afford for her daughter Cristina (Sarah Jeffery). Taglines:
What causes it? The most common causes of knee weakness are osteoarthritis, sprain or strain, and chronic knee pain. Within all the people who go to their doctor with knee weakness, 89% report having knee pain, 47% report having knee swelling, and 20% report having leg weakness.
It can be caused by overuse of the knee, injuries to the joint, or having a kneecap that's not properly in line. The damage to the cartilage can be mild or severe. Patellofemoral pain syndrome: Also called  runner's knee , this is a common cause of knee pain. It can be caused by overdoing physical activities, tissues around your knee that are too tight or too weak, and misalignment of your kneecap.