The knee is possibly the hardest working joint in the body. It carries your entire body weight, with every step that you take. So as you age and become heavier and live longer, you place a lot of demands on your knees. This is also why the number of people needing knee surgery is on the rise. Approximately 80 000 people around the age of 69 undergo knee surgery in England each year. The success of the surgery is however not guaranteed, even by the Best Knee Surgeon in Sydney. Between 10 to 15% of patients are not completely happy with the progress and don’t feel like they have complete flexibility of that knee. A further 5% are worse after the surgery due to complications. So although knee surgery could help with arthritis, it is not always full proof. The knee is also one of the most complicated joints in the body.