The hip joint is the largest weight-bearing joint in the human body. It is also referred to as a ball and socket joint and is surrounded by muscles, ligaments, and tendons.

The knee is made up of four bones. The femur or thighbone is the bone connecting the hip to the knee.

Trauma refers to injuries that most commonly occur during sports, exercise or any other physical activity.

Mr Cohen is a Consultant Orthopaedic Surgeon who’s NHS practice is based at The Royal Oldham Hospital and Fairfield General Hospital...