Evidence map›Paper›PMID 42803958›Full record

ArticleInternational orthopaedics2026

The first decade of data from the Irish National Orthopaedic Register: trends in hip and knee arthroplasty, implant utilisation and patient outcomes.

Conor Farrell, Martin S Davey, Pamela Hickey, Daragh Browne, Louise Brent, Cliona OʼDonovan, Seif El-Hadidi, John F Quinlan

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Article in International orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Conor FarrellRoyal College of Surgeons in Ireland, Dublin, Ireland. conorfarrell25@rcsi.com.ORCID https://orcid.org/0009-0008-6358-859X
Martin S DaveyRoyal College of Surgeons in Ireland, Dublin, Ireland.
Pamela HickeyNational Office of Clinical Audit, Dublin, Ireland.
Daragh BrowneNational Office of Clinical Audit, Dublin, Ireland.
Louise BrentNational Office of Clinical Audit, Dublin, Ireland.
Cliona OʼDonovanNational Office of Clinical Audit, Dublin, Ireland.
Seif El-HadidiNational Office of Clinical Audit, Dublin, Ireland.
John F QuinlanTallaght University Hospital, Dublin, Ireland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe Irish National Orthopaedic Register (INOR) was established to monitor total hip (THA) and total knee arthroplasty (TKA) practice, implant utilisation and patient outcomes in Ireland following the recall of the Articular Surface Replacement (ASR) metal-on-metal implant. This study presents the first decade of INOR data (2015-2024) from participating hospitals, evaluating patterns in arthroplasty activity, implant fixation, patient-reported outcome measures (PROMs) and clinical outcomes.

methodsA retrospective descriptive analysis of aggregated data from the INOR National Report (2015-2024) and accompanying appendices was performed, including demographics, procedural activity, implant utilisation, fixation strategies, PROMs (Oxford Hip Score [OHS], Oxford Knee Score [OKS], EQ-5D-5L) and clinical outcomes (30-day surgical site infection, dislocation, periprosthetic fracture, venous thromboembolism, mortality, and one-year revision).

resultsA total of 43,291 arthroplasty procedures were recorded across 17 participating hospitals, including 22,249 primary THAs (51%), 18,102 primary TKAs (42%), 1,864 revision THAs (4%) and 1,076 revision TKAs (3%). Annual volume increased from 841 cases in 2015 to 10,266 in 2024. Cementless fixation in primary THA increased from 43% in 2015 to 71% in 2024. Mean OHS improved from 17.9 preoperatively to 44.0, and mean OKS from 19.5 to 40.5, at five years. Mean EQ-5D-5L improved from 0.265 to 0.818 following THA and from 0.364 to 0.793 following TKA at five years. The 30-day SSI rate was 0.5% for both THA and TKA; one-year revision occurred in 1.0% of THAs and 0.8% of TKAs, and 30-day mortality was 0.1% overall.

conclusionDuring its first decade, INOR expanded its capture of arthroplasty procedures and generated data on implant utilisation, PROMs and clinical outcomes among participating hospitals. Because of phased onboarding and incomplete national coverage, these findings reflect practice at participating institutions rather than a complete national picture, and revision rate estimates should be interpreted cautiously given incomplete denominator capture. As participation grows, INOR is positioned to support implant surveillance, quality improvement and evidence-based arthroplasty practice in Ireland.

Indexed as

Arthroplasty registryImplant fixationIrish National Orthopaedic RegisterPatient-reported outcome measuresTotal hip arthroplastyTotal Knee Arthroplasty

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.