9 to 11 Year Clinical Results of Interface Bioactive Bone Cement by Interposing Hydroxyapatite Fine Granules between Bone and Bone Cement

摘要

HA fine granules (l00 approx 300 #mu# m) are smeared in 0 to 2 layers on the whole bone surface(IBBC). After smearing HA granules on the bone, bone cement is applied quickly to the bone. The period of follow-up study was 9 to 11 years alter surgery from 1987 to 1989. IBBC was performed on 153 joints of secondary OA with dysplasia. Acetabular bone graftings were performed on over 95 percent. Incidence of radiolucent line (RL) is remarkably low in IBBC. RL did not appear in the cases performing bone grafting at the dysplasic acetabular margin in IBBC. IBBC is a method combining the advantage of cementless HA coating and PMMA bone cement.