Whether you have just begun exploring treatment options or have already decided to undergo hip replacement surgery, this information will help you understand the benefits and limitations of total hip replacement. This article describes how a normal hip works, the causes of hip pain, what to expect from hip replacement surgery, and what exercises and activities will help restore your mobility and strength, and enable you to return to everyday activities.
If your hip has been damaged by arthritis, a fracture, or other conditions, common activities such as walking or getting in and out of a chair may be painful and difficult. Your hip may be stiff, and it may be hard to put on your shoes and socks. You may even feel uncomfortable while resting.
Is Hip Replacement Surgery for You?
The decision to have hip replacement surgery should be a cooperative one made by you, your family, your primary care doctor, and your orthopaedic surgeon. The process of making this decision typically begins with a referral by your doctor to an orthopaedic surgeon for an initial evaluation.
Osteoarthritis.This is an age-related "wear and tear" type of arthritis.
It usually occurs in people 50 years of age and older, but may occur in younger people, too. The cartilage that
cushions the bones of the knee softens and wears away. The bones then rub against one another, causing knee pain
Candidates for Surgery
There are no absolute age or weight restrictions for total hip replacements. Recommendations for surgery are based on a patient's pain and disability, not age. Most patients who undergo total hip replacement are age 50 to 80, but orthopaedic surgeons evaluate patients individually. Total hip replacements have been performed successfully at all ages, from the young teenager with juvenile arthritis to the elderly patient with degenerative arthritis.
Post-traumatic arthritis. This can follow a serious knee injury.
Fractures of the bones surrounding the knee or tears of the knee ligaments may damage the particular
cartilage over time, causing knee pain and limiting knee function.
When Surgery Is Recommended
There are several reasons why your doctor may recommend hip replacement surgery. People who benefit from hip replacement surgery often have:
1. Hip pain that limits everyday activities, such as walking or bending
2. Hip pain that continues while resting, either day or night
3. Stiffness in a hip that limits the ability to move or lift the leg
4. Inadequate pain relief from anti-inflammatory drugs, physical therapy, or walking supports
In a total hip replacement (also called total hip arthroplasty), the damaged bone and cartilage is removed and replaced with prosthetic components.
1. The damaged femoral head is removed and replaced with a metal stem that is placed into the hollow center of the femur. The femoral stem may be either cemented or "press fit" into the bone.
2. A metal or ceramic ball is placed on the upper part of the stem. This ball replaces the damaged femoral head that was removed.
3. The damaged cartilage surface of the socket (acetabulum) is removed and replaced with a metal socket. Screws or cement are sometimes used to hold the socket in place.
4. A plastic, ceramic, or metal spacer is inserted between the new ball and the socket to allow for a smooth gliding surface.