ArticleBone & joint research2020
Impaction technique influences implant stability in low-density bone model.
Article in Bone & joint research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
5 citing papers in PubMed.
- The effect of impaction energy and bone quality on cementless femoral implant fixation and femoral periprosthetic fracture risk.Bone & joint research · 2026Article
- Increasing reaming depth enhances implant stability while minimizing bone strain.Bone & joint research · 2025Article
- Enhancing acetabular reaming accuracy: optimal techniques and a novel reamer design.Journal of orthopaedic surgery and research · 2023Article
- Bioreactor analyses of tissue ingrowth, ongrowth and remodelling around implants: An alternative to live animal testing.Frontiers in bioengineering and biotechnology · 2023Article
- A parametric numerical analysis of femoral stem impaction.PloS one · 2022Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
aimsCementless acetabular components rely on press-fit fixation for initial stability. In certain cases, initial stability is more difficult to obtain (such as during revision). No current study evaluates how a surgeon's impaction technique (mallet mass, mallet velocity, and number of strikes) may affect component fixation. This study seeks to answer the following research questions: 1) how does impaction technique affect a) bone strain generation and deterioration (and hence implant stability) and b) seating in different density bones?; and 2) can an impaction technique be recommended to minimize risk of implant loosening while ensuring seating of the acetabular component?
methodsA custom drop tower was used to simulate surgical strikes seating acetabular components into synthetic bone. Strike velocity and drop mass were varied. Synthetic bone strain was measured using strain gauges and stability was assessed via push-out tests. Polar gap was measured using optical trackers.
resultsA phenomenon of strain deterioration was identified if an excessive number of strikes was used to seat a component. This effect was most pronounced in low-density bone at high strike velocities. Polar gap was reduced with increasing strike mass and velocity.
conclusionA high mallet mass with low strike velocity resulted in satisfactory implant stability and polar gap, while minimizing the risk of losing stability due to over-striking. Extreme caution not to over-strike must be exercised when using high velocity strikes in low-density bone for any mallet mass.Cite this article:
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Registered trials
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