Bone compaction enhances fixation of weight-bearing hydroxyapatite-coated implants
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Bone compaction enhances fixation of weight-bearing hydroxyapatite-coated implants. / Kold, Søren Vedding; Rahbek, Ole; Vestermark, Marianne Toft; Overgaard, Søren; Søballe, Kjeld.
I: Journal of Arthroplasty, Bind 21, Nr. 2, 01.02.2006, s. 263-70.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Bone compaction enhances fixation of weight-bearing hydroxyapatite-coated implants
AU - Kold, Søren Vedding
AU - Rahbek, Ole
AU - Vestermark, Marianne Toft
AU - Overgaard, Søren
AU - Søballe, Kjeld
PY - 2006/2/1
Y1 - 2006/2/1
N2 - 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.
AB - 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.
U2 - 10.1016/j.arth.2005.02.015
DO - 10.1016/j.arth.2005.02.015
M3 - Journal article
C2 - 16520217
VL - 21
SP - 263
EP - 270
JO - Journal of Arthroplasty
JF - Journal of Arthroplasty
SN - 0883-5403
IS - 2
ER -
ID: 252054280