Evidence map›Paper›PMID 31728182›Full record

ArticleBone & joint research2019

Preliminary report of clinical experience with metal-on-highly-crosslinked-polyethylene hip resurfacing.

Ronan B C Treacy, James P Holland, Joseph Daniel, Hena Ziaee, Derek J W McMinn

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Bone & joint research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06792539 (A Multi-Center, Prospective, Non-Randomized, Pivotal Trial Evaluating the Safety and Effectiveness of the Polymotion Hip Resurfacing System), which is not on this map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 8% 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.

NCT06792539 naactive not recruitingnot on this mapstarted 2025, after this paper: background citation

A Multi-Center, Prospective, Non-Randomized, Pivotal Trial Evaluating the Safety and Effectiveness of the Polymotion Hip Resurfacing System

TypeinterventionalSponsorJointMedica Inc.Ran2025 to 2028Enrolled238ConditionsOsteoarthritis of the Hip, Degenerative Joint Disease of Hip, Dysplasia, HipArmsPolymotion Hip Resurfacing (PHR) System
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Future Prospects for Clinical Applications of Nanocarbons Focusing on Carbon Nanotubes.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Trends and developments in hip and knee arthroplasty technology.Journal of rehabilitation and assistive technologies engineering
    Review
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

5 authors at 3 institutions in 1 country.

Ronan B C TreacyBMI The Edgbaston Hospital, Birmingham, UK.
James P HollandDepartment of Orthopaedic Surgery, Freeman Hospital, Newcastle-upon-Tyne, UK.
Joseph DanielDirector of Research, BMI The Edgbaston Hospital, Birmingham, UK; The McMinn Centre, Birmingham, UK.
Hena ZiaeeThe McMinn Centre, Birmingham, UK.
Derek J W McMinnThe McMinn Centre, Birmingham, UK.
The Edgbaston Hospital · GBThe McMinn Centre · GBFreeman Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesModern metal-on-metal (MoM) hip resurfacing arthroplasty (HRA), while achieving good results with well-orientated, well-designed components in ideal patients, is contraindicated in women, men with head size under 50 mm, or metal hypersensitivity. These patients currently have no access to the benefits of HRA. Highly crosslinked polyethylene (XLPE) has demonstrated clinical success in total hip arthroplasty (THA) and, when used in HRA, potentially reduces metal ion-related sequelae. We report the early performance of HRA using a direct-to-bone cementless mono-bloc XLPE component coupled with a cobalt-chrome femoral head, in the patient group for whom HRA is currently contraindicated.

methodsThis is a cross-sectional, observational assessment of 88 consecutive metal-on-XLPE HRAs performed in 84 patients between 2015 and 2018 in three centres (three surgeons, including the designer surgeon). Mean follow-up is 1.6 years (0.7 to 3.9). Mean age at operation was 56 years (sd 11; 21 to 82), and 73% of implantations were in female patients. All patients were individually counselled, and a detailed informed consent was obtained prior to operation. Primary resurfacing was carried out in 85 hips, and three cases involved revision of previous MoM HRA. Clinical, radiological, and Oxford Hip Score (OHS) assessments were studied, along with implant survival.

resultsThere was no loss to follow-up and no actual or impending revision or reoperation. Median OHS increased from 24 (interquartile range (IQR) 20 to 28) preoperatively to 48 (IQR 46 to 48) at the latest follow-up (48 being the best possible score). Radiographs showed one patient had a head-neck junction lucency. No other radiolucency, osteolysis, component migration, or femoral neck thinning was noted.

conclusionThe results in this small consecutive cohort suggest that metal-on-monobloc-XLPE HRA is successful in the short term and merits further investigation as a conservative alternative to the current accepted standard of stemmed THA. However, we would stress that survival data with longer-term follow-up are needed prior to widespread adoption.

Indexed as

ArthroplastyHip arthritisHip resurfacingImplant survivalYoung patients

Identifiers

PMID31728182
PMCPMC6825046
OpenAlexW2987135842

What OpenQuestion holds

Textmetadata
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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.