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Hip resurfacing has been developed as a surgical alternative to total hip replacement (THR). The procedure consists of placing a cap (usually made of cobalt-chrome metal), which is hollow and shaped like a mushroom, over the head of the femur while a matching metal cup (similar to what is used with a THR) is placed in the acetabulum ( pelvis ...
Hip replacement is one of the most common orthopaedic operations, though patient satisfaction varies widely. Approximately 58% of total hip replacements are estimated to last 25 years. The average cost of a total hip replacement in 2012 was $40,364 in the United States, and about $7,700 to $12,000 in most European countries.
Minimally invasive hip resurfacing (MIS) is a total or partial hip surgery that can be carried out through an incision of less than 10 cm (4 inches) without imparting great forces on the anatomy or compromising component positioning.
This reduction in bone density is known as stress shielding and can occur as a result of a hip replacement (or other prosthesis). [citation needed] The normal stress on a bone is shielded from that bone by being placed on a prosthetic implant.
In recent decades, the most successful and common form of arthroplasty is the surgical replacement of a joint or joint surface with a prosthesis. For example, a hip joint that is affected by osteoarthritis may be replaced entirely ( total hip arthroplasty) with a prosthetic hip.
Different articular cartilage repair procedures. Though the different articular cartilage repair procedures differ in the technologies and surgical techniques used, they all share the same aim to repair articular cartilage whilst keeping options open for alternative treatments in the future.
Arthroplasty, otherwise known as joint replacement, is a surgical procedure which involves resurfacing, realignment, or removal of bone at a joint interface to restore the joint's function. Arthroplasty is often performed on hips, knees, shoulders, and ankles to improve range of motion and relieve pain from arthritis or trauma.
As of 2013, work was underway on distraction devices using Shape-memory alloy that could precisely separate bone without the need for intervention, as well as springs and motors; the use of biopharmaceuticals like BMP in combination with devices was also being explored.
Hip resurfacing is a bone-conserving, less invasive alternative to total hip replacement (THR) for young patients, markedly improves the health-related quality of life measures and currently makes up around a twentieth of all hip arthroplasty (artificial joint) procedures performed in the United Kingdom.
As an alternative to hydroxyaptatite systems, Chitosan composites have been thoroughly studied as one material to use for artificial bone. Chitosan by itself can be easily modified into complex shapes that include porous structures, making it suitable for cell growth and osteoconduction. [5]