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| Home • Clinical Services • Hip and Knee Reconstructive Surgery |
Hip & Knee Service
The Hip and Knee Service specializes in the evaluation and management of hip and knee conditions. One of our specialties is the surgical treatment of these joints when they are damaged by arthritis. We perform primary and revision total joint replacements as well as corrective osteotomies. In selected patients with early arthritis and femoroacetabular impingement we also offer hip arthroscopy.
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Treatments of Hip Disorders
During a total hip replacement or total hip arthroplasty, both parts of the hip joint are replaced by artificial implants or prostheses.
The femoral (or leg) implant has a stem that extends into the canal of the thigh bone; the acetabular (or hip) component is placed inside the socket, or cup-like structure, of the hip. The femoral implant then fits into the cup-like structure of the hip, this combination allows the worn out area of the hip to be replaced by an implant which restores natural movement.
A total hip replacement might have different objectives, depending on the type of disease that is being treated. The standard objectives include the following:
- Improved movement, mobility and stabilization
- Reduced joint pain
- Improved alignment of deformed joints
- Increased leg strength
Your doctor will likely prescribe walking aids such as a cane, medication and/or physical therapy before actually suggesting a hip replacement. These therapies might prove effective in relieving pain and improving the function of your hip joint, but they will not cure the underlying disorder. Most degenerative problems will finally require replacement of the painful hip with an artificial hip replacement.
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Treatments of Knee Disorders
More joint replacement surgeries are performed on the knee than on any other joint. Knee replacement surgery is generally recommended for patients with severe knee pain and disability caused by damage to cartilage from rheumatoid arthritis, osteoarthritis or trauma. It is highly successful in relieving pain and restoring the function and use of the knee.
There are more than 150 knee replacement designs on the market today. Several manufacturers make knee implants, using metal alloys, high-grade plastics and advanced polymers. The brand and design used by your doctor or hospital depends on many factors, including your needs (based on your age, weight, activity level and health), the doctor's experience and familiarity with the device, and the cost and performance record of the implant. You may wish to discuss these issues with your doctor, but the final choice stays with your surgeon.
The Goal of Knee Surgery
Knee replacement is a routine surgery with very predictable results. Nearly 240,000 Americans receive knee implants each year, and as the population ages, this number is expected to increase. A total knee replacement may have different purposes depending on the disease being treated. The standard objectives are:
- Reduced joint pain
- Increased movement and mobility
- Improved alignment of deformed joints
- Increased stability
- Improved quality of life - the ability to return to normal activities and hobbies
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X-ray of an arthritic hip showing socket cartilage (left side of image) completely worn away, leaving bone painfully rubbing on bone. |
X-ray of the same hip, post-surgery. Hip implant (shows white) replaces patient’s ball and socket joint, relieving pain and restoring natural movement. |
X-ray of a knee joint with advanced cartilage damage, causing severe pain. |
Computerized simulation of a knee implant. Titanium and polypropylene construction provides patient with 15 to 20 years of comfortable wear. |
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