ArticleJournal of orthopaedic surgery and research2023
Enhancing acetabular reaming accuracy: optimal techniques and a novel reamer design.
Article in Journal of orthopaedic surgery and research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Acetabular Management in Hip Hemiarthroplasty: Reaming Considerations and Current Evidence.Cureus · 2026Review
- A Single-Reamer Technique is an Effective Strategy for Acetabular Preparation in Primary Total Hip Arthroplasty.Arthroplasty today · 2025Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionSuccessful press-fit implantation relies on an accurately reamed bone cavity. Inaccurate reaming can lead to a suboptimal press-fit risking fracture and cup deformation or excessive micromotion and loosening. Several factors may impact reaming accuracy including the reamer design, the surgeon's technique and the bone quality. The aim of this study is to investigate the accuracy of reaming techniques and the accuracy of a novel reamer design.
methodsEighty composite bone models, half high density and half low density, were reamed with either a conventional or an additively manufactured reamer with a novel design employing either a straight or 'whirlwind' reaming technique. Reamed cavities were scanned using a 3D laser scanner and the median difference between achieved and expected diameters compared.
resultsThe novel reamer design was more accurate than the unused conventional reamer, using both whirlwind (0.1 mm (IQR 0-0.2) vs. 0.3 mm (IQR 0.3-0.4); p < 0.001) and straight techniques (0.3 mm (IQR 0.1-1.0) vs. 1.2 mm (IQR 1-1.6); p = 0.001). Whirlwind reaming was more accurate than straight reaming using both conventional (0.3 mm (IQR 0.3-0.4) vs. 1.2 mm (IQR 1-1.6); p < 0.0001) and single use reamers (0.1 mm (IQR 0-0.2) vs. 0.3 mm (IQR 0.1-1.0); p = 0.007). Reaming errors were higher in low-density bone compared to high-density bone, for both reamer types and reaming techniques tested (0.6 mm (IQR 0.3-1.5) vs. 0.3 mm (IQR 0.1-0.8); p = 0.005).
conclusionWe present a novel reamer design that demonstrates superior accuracy to conventional reamers in achieving the desired reaming diameter. Improved reaming accuracy was also demonstrated using both devices and in both bone models, using a 'whirlwind' technique. We recommend the use of this novel reamer design employing a 'whirlwind' technique to optimize reaming accuracy. Particular attention should be paid toward patients with lower bone quality which may be more susceptible to higher inaccuracies.
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