Evidence map›Paper›PMID 27783104›Full record

ArticleInternational orthopaedics2017

Retrieval analysis of ceramic-coated metal-on-polyethylene total hip replacements.

Harman Khatkar, Harry Hothi, Danielle de Villiers, Christian Lausmann, Daniel Kendoff, Thorsten Gehrke, John Skinner, Alister Hart

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Article in International orthopaedics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
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

8 authors.

Harman KhatkarInstitute of Orthopaedics and Musculoskeletal Science, Royal National Orthopaedic Hospital, University College London, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK.
Harry HothiInstitute of Orthopaedics and Musculoskeletal Science, Royal National Orthopaedic Hospital, University College London, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK. h.hothi@ucl.ac.uk.
Danielle de VilliersInstitute of Orthopaedics and Musculoskeletal Science, Royal National Orthopaedic Hospital, University College London, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK.
Christian LausmannOrthopaedic Department, HELIOS Endo-Klinik, Hamburg, Germany.
Daniel KendoffOrthopaedic Department, HELIOS Endo-Klinik, Hamburg, Germany.
Thorsten GehrkeOrthopaedic Department, HELIOS Endo-Klinik, Hamburg, Germany.
John SkinnerInstitute of Orthopaedics and Musculoskeletal Science, Royal National Orthopaedic Hospital, University College London, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK.
Alister HartInstitute of Orthopaedics and Musculoskeletal Science, Royal National Orthopaedic Hospital, University College London, Brockley Hill, Stanmore, Middlesex, HA7 4LP, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCeramic coatings have been used in metal-on-polyethylene (MOP) hips to reduce the risk of wear and also infection; the clinical efficacy of this remains unclear. This retrieval study sought to better understand the performance of coated bearing surfaces.

methodsForty-three coated MOP components were analysed post-retrieval for evidence of coating loss and gross polyethylene wear. Coating loss was graded using a visual semi-quantitative protocol. Evidence of gross polyethylene wear was determined by radiographic analysis and visual inspection of the retrieved implants.

resultsAll components with gross polyethylene wear (n = 10) were revised due to a malfunctioning acetabular component; 35 % (n = 15) of implants exhibited visible coating loss and the incidence of polyethylene wear in samples with coating loss was 54 %, significantly (p = 0.02) elevated compared to samples with intact coatings (14 %).

conclusionsIn this study we found evidence of coating loss on metal femoral heads which was associated with increased wear of the corresponding polyethylene acetabular cups.

Indexed as

AdultAgedAged, 80 and overArthroplasty, Replacement, HipCeramicsFemaleFemur HeadHip ProsthesisHumansIncidenceMaleMicroscopy, Electron, ScanningMiddle AgedPolyethyleneProsthesis DesignProsthesis FailurePolyethyleneCoatingHipMetal-on-polyethyleneRetrievalWear

Identifiers

PMID27783104

What OpenQuestion holds

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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.