%0 Journal Article %T The use of hydroxyapatite as a bone graft substitute in orthopaedic conditions %A Reddy Renuka %A Swamy MKS %J Indian Journal of Orthopaedics %D 2005 %I Medknow Publications %X Background: The procedure of harvesting autologous bone graft has its own complications and morbidity, so there is search for alternative substances. G- Bone is a natural calcium phosphate hydroxyapatite in crystalline ceramic form derived from bovine. Methods: From August 1997 to Dec 2003, we operated 12 cases of benign bone tumours and 3 cases of scoliosis in which curettage and hydroxyapatite appatite filling was done. Clinico-radiological follow up was minimum 6 months to maximum 6 years. Results: We observed good bone formation and healing of lesion in all cases. In small lesion of hand and scoliosis, hydroxyapatite got incorporated by three months but in larger lesions of long bones incorporation of hydroxyapatite was partial even after 18 - 24 months. There was no collapse of graft on weight bearing. There was no complications like graft disintegration, recurrence of lesion, foreign body reaction to hydroxyapatite. Conclusion: Hydroxyapatite is an excellent bone graft substitute in orthpaedic surgeries. It facilities bone formation and is a biocompatible, slow remodeling material. %K Hydroxyapatite %K Bone graft substitute %K Bone tumors. %U http://www.ijoonline.com/article.asp?issn=0019-5413;year=2005;volume=39;issue=1;spage=52;epage=54;aulast=Reddy