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Calcium phosphates: what is the evidence?
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Orthopaedics.
2010 (English)In: Journal of Orthopaedic Trauma, ISSN 0890-5339, E-ISSN 1531-2291, Vol. 24, no Suppl.1, S41-S45 p.Article in journal (Refereed) Published
Abstract [en]

A number of different calcium phosphate compounds such as calcium phosphate cements and solid beta-tricalcium phosphate products have been introduced during the last decade. The chemical composition mimics the mineral phase of bone and as a result of this likeness, the materials seem to be remodeled as for normal bone through a cell-mediated process that involves osteoclastic activity. This is a major difference when compared with, for instance, calcium sulphate compounds that after implantation dissolve irrespective of the new bone formation rate. Calcium phosphates are highly biocompatible and in addition, they act as synthetic osteoconductive scaffolds after implantation in bone. When placed adjacent to bone, osteoid is formed directly on the surface of the calcium phosphate with no soft tissue interposed. Remodeling is slow and incomplete, but by adding more and larger pores, like in ultraporous beta-tricalcium phosphate, complete or nearly complete resorption can be achieved. The indications explored so far include filling of metaphyseal fracture voids or bone cysts, a volume expander in conjunction with inductive products, and as a carrier for various growth factors and antibiotics. Calcium phosphate compounds such as calcium phosphate cement and beta-tricalcium phosphate will most certainly be part of the future armamentarium when dealing with fracture treatment. It is reasonable to believe that we have so far only seen the beginning when it comes to clinical applications.

Place, publisher, year, edition, pages
Lippincott Williams & Wilkins , 2010. Vol. 24, no Suppl.1, S41-S45 p.
Keyword [en]
calcium phosphate, cement, augmentation, surgery, osteoporosis, fractures
National Category
Medical and Health Sciences
Research subject
URN: urn:nbn:se:uu:diva-129579DOI: 10.1097/BOT.0b013e3181cec472ISI: 000275193800009PubMedID: 20182235OAI: oai:DiVA.org:uu-129579DiVA: diva2:344348
Available from: 2010-08-19 Created: 2010-08-19 Last updated: 2010-12-22Bibliographically approved

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