Hip impingement is also known as Femoro Acetabular Impingement, or FAI. The hip is a ball-and-socket joint. The ball at the top of the leg bone is called the femoral ball. It fits into the socket, called the acetabulum, which is in the pelvis bone. Hip impingement occurs when either the ball or the socket has an abnormal shape that makes the two bones impinge or bump against each other. This causes damage to the hip joint. Symptoms Hip impingement may cause a general ache around the hip, or it could cause more specific types of pain, such as: Pain deep in the groin Pain on the outside of the hip Pain during movements such as twisting or squatting Causes and Risk Factors Hip impingement is caused by bones that did not grow normally during childhood. Treatment Options If the pain from hip impingement is not severe, your doctor may recommend resting the hip and taking anti-inflammatory medicine such as ibuprofen. If your hip impingement pain does not go away or if it becomes worse, your doctor may want to take X-rays to find out what part of your hip is causing the pain. Hip impingement is sometimes treated with arthroscopic surgery, which involves the doctor inserting instruments into small incisions near your hip and trimming parts of the bones that are rubbing together. Alternatively, an open ‘surgical hip dislocation’ surgery may be recommended if there is a significant hip impingement deformity.
A fracture in the bone around a hip replacement or knee replacement may occur after the hip or knee was replaced. In many cases, the replaced joint works normally for years before the fracture happens. A fracture near a hip replacement or knee replacement is also known as a periprosthetic fracture. Symptoms Symptoms of a fracture near a replaced hip or knee joint: Pain near the replaced joint after a fall or trauma Swelling or bruising Inability to put weight on the leg The leg looks deformed Causes and Risk Factors Fractures around hip replacements and knee replacements are often caused by a fall or a direct blow to the leg or joint. People who have conditions that weaken their bones, such as osteoporosis or rheumatoid arthritis, are at a greater risk for this type of fracture, because the bone around the replacement will be more likely to break. Other risk factors are poor vision or poor balance, since these conditions can make a fall more likely. Treatment Options In most cases, a fracture around a hip replacement or a knee replacement will require surgery. In general, the surgery will likely involve one of the following: Screws, cables, plates, or a bone graft that are applied to the fracture to fix and hold the bone together The implant from the original joint replacement is removed and replaced with a new implant The treatment your doctor recommends will depend on several factors, including: The location of the fracture The quality of the remaining bone around the fracture and the implant Whether the replaced joint is still well-fixed or came loose because of the fracture Your overall health
A hip replacement may last for 20 years or more, but sometimes a hip replacement can fail. This can happen because the bearing wears out, the replacement parts fail or because there is a problem with the tissue or bones around the replaced joint. Symptoms When your hip replacement fails, you may feel pain in the joint, or the joint may not move the way it normally does, and it becomes unstable. Causes and Risk Factors A hip replacement may fail for reasons such as: Loosening of the implant from the bone after years of wear and tear Worn-out bearings of the replacement parts due to time or an overly active lifestyle Infection in the joint Injury with a fracture Repeated dislocations of the replaced hip Treatment Options Treatment of a failed hip replacement often requires surgery, depending on the type of failure.
A knee replacements should last for 15 to 20 years or more. But sometimes a knee replacement can fail after years of wear and tear on the replacement parts. Symptoms When a knee replacement fails, the knee may become painful, swollen, and unstable. Causes and Risk Factors A failed knee replacement can be caused by: Loosening of the replacement parts due to wear and tear Worn-out bearings of the replacement parts due to time or an overly active lifestyle Infection in the joint Injury with a fracture or a rupture of the tendons that straighten the knee Treatment Options A failed knee replacement may require surgery. The type of surgery depends on what caused the knee replacement to fail. The surgery may be necessary to repair tissue or to remove an infection. Or you have have surgery to replace the original replacement parts.
Knee Replacement Library Failed Hip Replacement Failed Knee Replacement Fractures around a Hip Replacement or Knee Replacement Hip Impingement Orthopedic Resources Orthopedic Health Topics Orthopedics Clinic