Hip replacement, or arthroplasty, is a surgical procedure in which the diseased parts of the hip joint are removed and replaced with new, artificial parts. These artificial parts are called the prosthesis. The goals of hip replacement surgery include increasing mobility, improving the function of the hip joint, and relieving pain .The hip joint is located where the upper end of the femur, or thigh bone, meets the pelvis, or hip bone. A ball at the end of the femur, called the femoral head, fits in a socket (the acetabulum) in the pelvis to allow a wide range of motion.
People with hip joint damage that causes pain and interferes with daily activities despite treatment may be candidates for hip replacement surgery. Osteoarthritis is the most common cause of this type of damage. However, other conditions, such as
1) Rheumatoid arthritis (a chronic inflammatory disease that causes joint pain, stiffness, and swelling)
2) Oteonecrosis (or avascular necrosis, which is the death of bone caused by insufficient blood supply)
3) Injury,Fracture, also may lead to breakdown of the hip joint and the need for hip replacement surgery.
4) Bone tumors is a neoplastic growth of tissue in bone. Abnormal growths found in the bone can be either benign (noncancerous) or malignant (cancerous).
In the past, doctors reserved hip replacement surgery primarily for people over 60 years of age. The thinking was that older people typically are less active and put less stress on the artificial hip than do younger people. In more recent years, however, doctors have found that hip replacement surgery can be very successful in younger people as well. New technology has improved the artificial parts, allowing them to withstand more stress and strain and last longer.
The hip joint is located where the upper end of the femur, or thigh bone, meets the pelvis, or hip bone. A ball at the end of the femur, called the femoral head, fits in a socket (the acetabulum) in the pelvis to allow a wide range of motion. In recent years, some surgeons have begun performing what is called a minimally invasive, or mini-incision, hip replacement, which requires smaller incisions and a shorter recovery time than traditional hip replacement. Candidates for this type of surgery are usually age 50 or younger, of normal weight based on body mass index and healthier than candidates for traditional surgery. Joint resurfacing is also being used.
Regardless of whether you have traditional or minimally invasive surgery, the parts used to replace the joint are the same and come in two general varieties: cemented and uncemented.
Cemented parts are fastened to existing, healthy bone with a special glue or cement. Hip replacement using these parts is referred to as a “cemented” procedure.
Uncemented parts rely on a process called biologic fixation, which holds them in place. This means that the parts are made with a porous surface that allows your own bone to grow into the pores and hold the new parts in place. Sometimes a doctor will use a cemented femur part and uncemented acetabular part. This combination is referred to as a hybrid replacement.
The answer to this question is different for different people. Because each person’s condition is unique, the doctor and you must weigh the advantages and disadvantages.
Cemented replacements are more frequently used for older, less active people and people with weak bones, such as those who have osteoporosis, while uncemented replacements are more frequently used for younger, more active people.
Studies show that cemented and uncemented prostheses have comparable rates of success. Studies also indicate that if you need an additional hip replacement, or revision, the rates of success for cemented and uncemented prostheses are comparable.
For the majority of people who have hip replacement surgery, the procedure results in:
- Decrease in pain
- Increased mobility
- Improvements in activities of daily living
- Improved quality of life.
- Cost effectiveness
Follow the doctor’s instructions. - Work with a physical therapist or other health care professional to rehabilitate your hip. - Wear an apron for carrying things around the house. This leaves hands and arms free for balance or to use crutches. - Use a long-handled “reacher” to turn on lights or grab things that are beyond arm’s length. Hospital personnel may provide one of these or suggest where to buy one.