In hemi replacement only the ball is changed
Where the ball is replaced and socket is resurfaced.
In cemented hip replacement surgery 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 in use.
In non Cemented hip replacement surgery the parts are press fitted in the prepared bone and the bone grows in the fine crevices of the implant making it stable This design is mainly used for younger individuals.
Non cemented hips last longer than cemented hips. The current designs may last up to 30 years. This means even younger individuals can undergo surgeries to alleviate suffering.
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