Bone compaction enhances fixation of weight-bearing hydroxyapatite-coated implants

The Journal of Arthroplasty
Søren KoldK Søballe

Abstract

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.

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Citations

Oct 21, 2016·Acta Orthopaedica·Mette H HjorthSøren Kold
Dec 21, 2006·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Thomas JakobsenKjeld Søballe
Mar 26, 2019·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Johanna BätzGraeme M Campbell
Aug 14, 2019·Periodontology 2000·Estevam A BonfantePaulo G Coelho
May 16, 2018·Implant Dentistry·Frederic B SleteHari Prasad
Dec 2, 2020·Materials Science & Engineering. C, Materials for Biological Applications·Teerawat LaonapakulPrinya Chindaprasirt

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