Postoperative impacts of reamer-irrigator-aspirator (RIA) on femoral strength: A finite element analysis

Q: What does this research mean for the field?

Reamer-irrigator-aspirator (RIA) bone graft harvesting results in minimal reduction of postoperative femoral strength unless cortical penetration occurs, which significantly decreases fracture resistance under rotational loading. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Ryota Nishida; Yohei Kumabe; Kenichi Sawauchi; Yutaka Matsumiya; Tomoaki Fukui; Hyuma Kondo; Takahiro Niikura; R Kuroda; Keisuke Oe

doi:10.1016/j.injury.2026.113367

May 1, 2026InjuryOpen Access

Postoperative impacts of reamer-irrigator-aspirator (RIA) on femoral strength: A finite element analysis

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Key Points

To investigate the effects of the reamer-irrigator-aspirator (RIA) on postoperative femoral strength using finite element analysis.
Quantitative CT-based finite element analysis used pre-and postoperative images from three patients undergoing RIA.
Three loading conditions analyzed: axial loading, direct force, and rotation.
Fracture loads compared between pre-and post-RIA models.
In Patients 1 and 2, femoral strength decreased minimally post-RIA; fracture sites unchanged.
In Patient 3, notable fractures occurred at cortical penetration sites under rotational loading, with 78% lower fracture load than before RIA.

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Implication

Evaluates femoral strength after RIA intervention, indicating fracture risk in patients with cortical penetration.

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Cite This Study

Nishida et al. (2026) studied this question.

synapsesocial.com/papers/6a0ff327d674f7c03778b9a2 https://doi.org/10.1016/j.injury.2026.113367

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Postoperative impacts of reamer-irrigator-aspirator (RIA) on femoral strength: A finite element analysis

Key Points

No abstract yet

Implication

Discussion

Cite This Study

Postoperative impacts of reamer-irrigator-aspirator (RIA) on femoral strength: A finite element analysis

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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