Bone Substitutes
A surgeon is planning to augment a metaphyseal bone defect in a distal radius fracture in a 65-year-old woman with osteoporosis. The defect is too large for autograft alone but the patient wishes to avoid iliac crest harvest. The surgeon is considering calcium phosphate ceramic bone substitutes. Regarding calcium phosphate ceramics as bone substitutes:
Mark each as TRUE or FALSE
Calcium phosphate ceramics are synthetic bone substitutes with compositions similar to the mineral p...
Hydroxyapatite (HA) has slow resorption (years to decades), high crystallinity, and excellent biocom...
Calcium phosphates are osteoinductive and osteogenic; HA has faster resorption than TCP; higher crys...
Porosity is critical for osteoconduction: macropores (100-500 micrometres) allow vascular ingrowth a...
Clinical applications include metaphyseal fracture void filling, benign bone tumour defects, spinal ...
Answer the questions to see explanations
Click T (True) or F (False) for each option