Call for emergency medical help. If you suspect you're having a heart attack, don't hesitate. Immediately call 911 or your local emergency number. If you don't have access to emergency medical services, have someone drive you to the nearest hospital.
The most common causes of knee weakness are osteoarthritis, sprain or strain, and chronic knee pain. Other possible causes, such as injury to the knee, are more rare. Osteoarthritis 22. Sprain or strain 17. Chronic knee pain 15. Knee ligament or meniscus tear 8. Fracture of the leg 4. Bursitis 2.
Three major physical impairments â such as knee pain, stiffness and decreased quadriceps strength â are highly associated with knee OA and are believed to contribute to physical disability and progression of the disease. In general, knee pain is typically caused by two things: arthritis or a sports related injury. 1. Arthritis