Bone Conserving Partial Knee Replacement, Paul Enker, MD, Long Island Arthritis & Joint Replacement, PCConnecting the upper and lower legs, the knee is a hinge joint and the largest in your body. It allows you to run, squat, walk, sit, or jump, and contains the femur. The bones are covered by cartilage and surrounded by ligaments, muscles and tendons.

Every year, nearly one million Americans of all ages, shapes and sizes, develop arthritis, with the most prevalent form being osteoarthritis.1
Osteoarthritis is the number one reason for joint replacement. Cartilage becomes progressively thinner until bone rubs on bone resulting in pain and decreased range of motion. When non-operative treatments, medication and physical therapy no longer work, it may be time to consider joint replacement.

A partial knee replacement, also known as a unicondylar knee replacement, allows the surgeon to replace only the damaged half of bone and keep the healthy cartilage and ligaments in place.

The surgeon will make a small incision and gently move the supporting structures of the knee to gain access to the damaged area. The arthritic area is then removed and replaced with various implant components specific to the patient’s body structure.

Between 10 and 15 percent of patients suffering from knee arthritis are eligible for this procedure.2 This procedure is ideal for patients that have arthritis confined to a single compartment of half their knee and are not morbidly obese. Most patients experience minimal blood loss, quick recovery, return to their everyday activities three to six weeks after surgery.

Click here to learn more about this procedure by watching this educational animation.



2 National Center for Health Statistics Website. Inpatient Surgery.