|
There are three types of hip replacements
- Hemi replacement :
In which only ball of the femur is replaced
Total hip replacement :
In which ball is replaced and the socket is resurfaced.Surface replacement :
Where the surface of the ball is shaved off and is capped and similary
the surface of the socket is scraped off and is resurfaced with metal
lining.
According to how these parts are fixed to the bone,
hip joint replacement is classified as :
- Cemented :
In this design, the parts are fitted to the patient bone with a substance
called bone cement. The correct name for it is Poly Methyl Methacrylate.
This design is still more commonly used.
- Non-cemented :
In this design, the parts are pressfitted in the prepared bone and the
bone is expected to grow in the fine crevices of the implant. This design
is mainly used for younger individuals.
Hemi and total replacement may be either cemented or Non-cemented.
NON-CEMENTED HIP JOINT REPLACEMENT
is indicated in young patient with arthritis. Young patients who develop
hip arthritis due to any cause, and are unable to walk, or walk with great
difficulty now have a good solution for their painful hips. The new designs
of hip implants do not require fixation with bone cement, last longer
and eliminate pain.
|
