Abstract
The presence of demineralized bone matrix (DBM) gel did not enhance or accelerate attachment strength or bone ingrowth and resulted in a significant decrease in implant interface attachment strength at 3 weeks. Hydroxyapatite (HA) coating resulted in significant increases in interface shear strength and bone in-growth compared with non-HA-coated porous implants at all time periods. The HA-coated implants achieved greater attachment strength and bone ingrowth at earlier time periods and maintained greater attachment strength at long-term periods. The results of this study indicate that in the presence of a good bone-implant interference fit, there is no beneficial effect in applying DBM gel to a porous-coated or HA-coated porous implant surface. The small amount that can be applied and the degree of osteoinductivity of DBM seem to preclude it from having a significant biologic effect.
Original language | English |
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Pages (from-to) | 402-408 |
Number of pages | 7 |
Journal | Journal of Arthroplasty |
Volume | 17 |
Issue number | 4 |
DOIs | |
State | Published - 2002 |
Keywords
- Animal model
- Bone ingrowth
- Demineralized bone matrix (DBM)
- Hydroxyapatite (HA)
- Implant fixation
- Porous implants