Evidence map›Paper›PMID 33422084›Full record

ArticleJournal of orthopaedic surgery and research2021

Mid-term outcomes of the R3™ delta ceramic acetabular system in total hip arthroplasty.

Edward T Davis, Ville Remes, Petri Virolainen, Peter Gebuhr, Bart Van Backlé, Matthew P Revell, Branko Kopjar

Registry-linked trialOpen access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of orthopaedic surgery and research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03566082 (Post-Approval Study of the R3 Biolox Delta Ceramic Acetabular System - Europe), which is not on this map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.3field-weighted citation impact, top 22% of its field
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.

NCT03566082 completednot on this map

Post-Approval Study of the R3 Biolox Delta Ceramic Acetabular System - Europe

TypeobservationalSponsorSmith & Nephew Orthopaedics AGRan2009 to 2021Enrolled135ConditionsDegenerative Joint Disease of Hip
3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 7 citations in OpenAlex.

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4 · The record

Corrections and comments

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

7 authors at 5 institutions in 4 countries.

Edward T DavisThe Royal Orthopaedic Hospital, NHS Foundation Trust, Bristol Road South, Northfield, Birmingham, B31 2AP, UK. edward.davis@nhs.net.
Ville RemesDepartment of Orthopedics, HUS Peijaksen sairaala, P.O. Box 900, 00029 HUS, Vantaa, Finland.
Petri VirolainenTurku University Hospital, Kiinamyllynkatu 4-8, P.O Box 52, 20521, Turku, Finland.
Peter GebuhrOrthopaedic Surgeon, Department of Orthopaedics, Hvidovre University Hospital, Copenhagen, Denmark.
Bart Van BackléAZ Nikolaas, Sint Niklaas, Regentiestraat, 60, 9100, Sint Niklaas, Belgium.
Matthew P RevellThe Royal Orthopaedic Hospital, NHS Foundation Trust, Bristol Road South, Northfield, Birmingham, B31 2AP, UK.
Branko KopjarDepartment of Health Services, University of Washington, H690C, Health Sciences Building, P.O. Box 357660, Seattle, WA, 98195-7660, USA.
Royal Orthopaedic Hospital · GBHvidovre Hospital · DKPeijas Hospital · FITurku University Hospital · FIUniversity of Washington · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhilst bony fixation of hip replacement has stable solutions, there remains controversy over which bearing best optimizes longevity and function. Ceramic-on-ceramic (CoC) bearing combinations are associated with lower risk of revision due to aseptic loosening and dislocation. Evidence for long-term functional outcomes of modern, 4th generation CoC bearings is limited. The aim of this study was to analyze outcomes and complications of the R3™ Acetabular System (Smith & Nephew, Inc., Cordova, TN, USA) in combination with BIOLOX® Delta ceramic femoral head in patients undergoing primary total hip arthroplasty (THA).

methodsBetween June 2009 and May 2011, 175 patients (178 hips) were enrolled into a prospective, study at 6 sites in Europe and prospectively followed-up at 3 months and 1, 3, 5, and 7 years postoperative.

resultsTotal WOMAC score improved from 63 (range, 22-91) preoperative to 8 (range, 0-8) at 1-year follow-up and remained unchanged at 7-year follow-up. Modified Harris hip score improved from 45 (range, 10-87) preoperative to 83 (range, 25-100) at 3 months, 91 (range, 42-100) at 1 year, and 92 (range, 46, 100) at 7 years. UCLA Activity Rating Scale score improved from 3.3 (range, 1-8) preoperative to 6.2 (range, 2-8) at 1 year; it marginally declined to 5.8 (range, 3-8) at 7-year follow-up. There were 4 trochanteric fractures and 5 patients died of unrelated reasons. Three hips were revised (2 periprosthetic fractures and 1 subluxation). The 7-year cumulative survival rate was 98.3%.

conclusionClinical and functional improvements of THA with CoC bearing are maintained at 7 years postoperative.

trial registrationClinicalTrials.Gov, NCT03566082 , Registered 10 January 2018-retrospectively registered.

Indexed as

CeramicsHip ProsthesisProsthesis DesignAcetabulumAdolescentAdultAgedArthroplasty, Replacement, HipFemaleFemur HeadFollow-Up StudiesHip JointHumansJoint DiseasesMaleMiddle AgedBearingCeramic-on-ceramic (CoC)ComplicationsDelta ceramicModified Harris hip score (mHHS)OutcomesR3™ delta Ceramic Acetabular SystemTotal hip arthroplasty (THA)UCLA Activity Rating Scale (UCLA ARS)Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC®)

Identifiers

PMID33422084
PMCPMC7797157
OpenAlexW3120673549

What OpenQuestion holds

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Registered trials

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.