Evidence map›Paper›PMID 29951260›Full record

ArticleEFORT open reviews2018

Head size in primary total hip arthroplasty.

Georgios Tsikandylakis, Maziar Mohaddes, Peter Cnudde, Antti Eskelinen, Johan Kärrholm, Ola Rolfson

Abstract read
In one paragraph

Article in EFORT open reviews, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 3 pooled it
–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

44 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Neglected traumatic hip dislocation: a systematic review of case reports and case series on management, outcomes, and complications.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026
    Pooled it
  2. Pooled it
  3. Ceramic-on-Ceramic Total Hip Arthroplasty with Large Diameter Heads: A Systematic Review.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2021
    Pooled it
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  10. Does glenosphere size impact shoulder rotational range of motion after reverse shoulder arthroplasty? A retrospective cohort study.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
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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

6 authors.

Georgios TsikandylakisDepartment of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden.
Maziar MohaddesDepartment of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden.
Peter CnuddeDepartment of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sweden.
Antti EskelinenCoxa Hospital for Joint Replacement, Tampere, Finland.
Johan KärrholmDepartment of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden.
Ola RolfsonDepartment of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The use of larger femoral head size in total hip arthroplasty (THA) has increased during the past decade; 32 mm and 36 mm are the most commonly used femoral head sizes, as reported by several arthroplasty registries.The use of large femoral heads seems to be a trade-off between increased stability and decreased THA survivorship.We reviewed the literature, mainly focussing on the past 5 years, identifying benefits and complications associated with the trend of using larger femoral heads in THA.We found that there is no benefit in hip range of movement or hip function when head sizes > 36 mm are used.The risk of revision due to dislocation is lower for 36 mm or larger bearings compared with 28 mm or smaller and probably even with 32 mm.Volumetric wear and frictional torque are increased in bearings bigger than 32 mm compared with 32 mm or smaller in metal-on-cross-linked polyethylene (MoXLPE) THA, but not in ceramic-on-XLPE (CoXLPE).Long-term THA survivorship is improved for 32 mm MoXLPE bearings compared with both larger and smaller ones.We recommend a 32 mm femoral head if MoXLPE bearings are used. In hips operated on with larger bearings the use of ceramic heads on XLPE appears to be safer. Cite this article:

Indexed as

dislocationhead sizehip arthroplastylarge bearingrevision

Identifiers

PMID29951260
PMCPMC5994615

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Registered trials

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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.