Hip replacement surgery is performed when the hip joint has reached a point when painful symptoms can no longer be controlled with non-operative treatments.
In a hip replacement procedure, your surgeon removes the damaged joint surface and replaces it with an artificial implant. When a hip replacement is performed, the bone and cartilage on the ball-and-socket hip joint is removed. This is performed using precise instruments to create surfaces that can accommodate the implant perfectly. An artificial hip replacement implant is then placed in to function as a new hip joint.
Hip replacement surgery has become quite common, but there are still risks. Fortunately, well over 98% of patients who undergo hip replacement surgery have good results.
CEMENTED HIP:A patient with a cemented
total hip replacement
can put full weight on the limb and walk without support almost immediately after surgery, resulting in a faster rehabilitation.
Cemented fixation relies on a stable interface between the prosthesis and the cement and a solid mechanical bond between the cement and the bone. Today, the most commonly used bone cement is an acrylic polymer called polymethylmethacrylate (PMMA).
Cemented
total hip replacement
is more commonly recommended for older patients, for patients with conditions such as rheumatoid arthritis, and for younger patients with compromised health or poor bone quality and density. These patients are less likely to put stresses on the cement that could lead to fatigue fractures
UNCEMENTED HIP : Cementless total hip replacement is most often recommended for younger, more active patients and patients with good bone quality where bone ingrowth into the components can be predictably achieved. The implant attach directly to bone without the use of cement.
Most implants are textured or have a surface coating around much of the implant so that the new bone actually grows into the surface of the implant. Cementless implants require a longer healing time than cemented replacements. Your surgeon may recommend a period of protected weight-bearing (using crutches or a walker) to give the bone time to attach itself to the implant. This protected weight bearing helps to ensure there is no movement between the implant and bone so a durable connection can be established.
The acetabular component of a cementless total hip replacement also has a coated or textured surface to encourage bone growth into the surface. Depending on the design, these components may also use screws through the cup or spikes, pegs, or fins around the rim to help hold the implant in place until the new bone forms. Usually these components have a metal outer shell and a polyethylene liner.
HYBRID HIP: A hybrid
total hip replacement
has one component, usually the acetabular socket, inserted without cement, and the other component, usually the femoral stem, inserted with cement.
A hybrid hip takes advantage of the excellent track records of cementless hip sockets and cemented stems.
SURFACE HIP REPLACEMENT: It's an advanced alternative of the traditional Hip Replacement Surgery, wherein the damaged and worn out surface at the end of the thigh bone (femur) is resurfaced with a metal cap. This implant is potentially more stable and long lasting than the traditional hip surgery and allows the patient to do multitude of strenuous physical activities like squatting and sitting on the floor. This surgery best suits young and/or active adults with better bone quality. This is very commonly undertaken operation in the institute.
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Centre for Joint Replacements,
Arthritis arthroscopy,
Hip Replacement,
Shoulder Replacement,
Knee Replacement,
Custom Fit Total Knee Replacement
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