Bone compaction enhances fixation of weight-bearing hydroxyapatite-coated implants
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
The effect of bone compaction vs conventional drilling on the fixation of hydroxyapatite-coated implants was examined in a weight-bearing canine model. In each dog, one knee joint had the implant cavity prepared with drilling, the other with compaction. Eight dogs were euthanized after 2 weeks and 8 dogs after 4 weeks. Femoral condyles from additional 7 dogs represented time 0. Compacted specimens had significantly higher bone implant contact and energy absorption at time 0. Compaction significantly increased ultimate shear strength at 0 and 2 weeks. There was no significant difference in implant fixation after 4 weeks. The results of this study suggest that compaction may be beneficial in optimizing the crucial initial implant stability, even when hydroxyapatite-coated implants with osteoconductive properties are inserted in vivo.
Originalsprog | Engelsk |
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Tidsskrift | Journal of Arthroplasty |
Vol/bind | 21 |
Udgave nummer | 2 |
Sider (fra-til) | 263-70 |
Antal sider | 8 |
ISSN | 0883-5403 |
DOI | |
Status | Udgivet - 1 feb. 2006 |
Eksternt udgivet | Ja |
ID: 252054280