Material for artificial hip joint
[1] The osteoarthrisis, as shown below, is caused by a deterioration of the cartilage situated between the two bones. This problem mainly appeared among the elderly and often among the sportsman who are applying bog strain to their body and so to their articulation. By the deterioration of the cartilage, the friction coefficient increase and the bones get damaged. Hence the patient suffers of great pain and is unable to walk normally.
The main and first problem for researcher has been to find materials that can replace the cartilage, and/or the bones. Those materials must have different properties in order to fit well within our body: * Biocompatibility: the body have to accept the material * Bioactivity: interaction between the body and the material * [3]
Corrosion