Summary
Hydroxyapatite (HA), which constitutes 65% of the mineral component of human bone, is a crystalline structure whose synthesis was achieved at the beginning of the century. The development of the technology of coating metals with a ceramic material stimulated extensive research throughout the world leading to the use of implants coated with HA in maxillofacial surgery. The application to ostearticular implants was preceded by rigorous and prolonged experimentation, which demonstrated that implants of titanium coated with HA were devoid of risk and made it possible to secure excellent bony fixation. With a follow-up well in excess of 10 years the published results are evidence of considerable improvement and confirm that articular implants coated with HA represent a major advance. However, HA is only involved in bony fixation and cannot compensate for inadequate design of the implants as regards their shape or surface state.
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Petit, R. The use of hydroxyapatite in orthopaedic surgery: A ten-year review. Eur J Orthop Surg Traumatol 9, 71–74 (1999). https://doi.org/10.1007/BF01695730
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Key word
- Hydroxyapatite