Knee & Hip


The knee is the largest joint in the body, made up of the lower end of the thighbone (femur), the upper end of the shinbone (tibia) and the knee cap (patella). The knee also includes four major ligaments that connect the bones, control motion, stabilize the joint and restrict abnormal movement. The knee cartilage allows the bones in the knee to glide smoothly over each other.


The hip is one of the human body's largest weight-bearing joints. It consists of two main parts: a ball at the top of your thighbone and the rounded socket in the pelvis. Ligaments hold the ball into the socket and provide stability to the joint. A smooth protective cover called the articular cartilage covers the bone surfaces of the ball and socket and cushions the ends of the bones, enabling them to move easily against one another.

For more information on hip injuries and conditions, visit the American Association of Orthopaedic Surgeons website.

The physicians at ONS are available to assist in diagnosing and treating your knee or hip condition.  We invite you to schedule a consultation with a knee and hip specialist in our Greenwich CT Orthopaedics Center. Read more about our physicians by clicking on links to their bios below.