Hydroxyapatite is a calcium phosphate mineral contained in normal bone. The lattice-like structure of hydroxyapatite crystals accounts for the rigidity of bones. Hydroxyapatite is often used in the manufacture of bone void filler products that provide scaffolding for bone growth to supplement a patient's own bone in orthopedic procedures.
If hydroxyapatite crystals become embedded in or around joints, it may result in a painful inflammatory condition known as hydroxyapatite crystal disease.
