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.
Most Common Causes for Knee Replacement. 1  Arthritis: Arthritis is a wearing away of the surfaces (articular cartilage) of the joint, caused either by aging or disease. 2  Osteonecrosis: If the blood supply to the thighbone is decreased, part of the bone will die and break from weight-bearing activity.