WHAT CAUSES KNEE PAIN? - – Knee pain is common. It affects people of all ages. Knee pain may be the result of an injury, such as a ruptured ligament or torn cartilage, medical conditions e.g. arthritis, gout and infections and overuse conditions such as tendinopathy and muscle injuries. Here’s a look at the common causes and what you should do about them. Specialist Knee Surgeon - Mr Gareth Stables - explains more...