Evidence map›Paper›PMID 31254017›Full record

ArticleInternational orthopaedics2020

Short stems reproduce femoral offset better than standard stems in total hip arthroplasty: a case-control study.

Roger Erivan, Anne-Sophie Muller, Guillaume Villatte, Stéphane Millerioux, Aurélien Mulliez, Stéphane Boisgard, Stéphane Descamps

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in International orthopaedics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
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  4. Femoral antetorsion after calcar-guided short-stem total hip arthroplasty: A cadaver study.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2022
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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.

Roger ErivanCNRS, SIGMA Clermont, ICCF, CHU Clermont-Ferrand, Université Clermont Auvergne, F-63000, Clermont-Ferrand, France. rerivan@chu-clermontferrand.fr.ORCID http://orcid.org/0000-0003-0923-7672
Anne-Sophie MullerCHU Clermont-Ferrand, Université Clermont Auvergne, F-63000, Clermont-Ferrand, France.
Guillaume VillatteCNRS, SIGMA Clermont, ICCF, CHU Clermont-Ferrand, Université Clermont Auvergne, F-63000, Clermont-Ferrand, France.
Stéphane MilleriouxCHU Clermont-Ferrand, Université Clermont Auvergne, F-63000, Clermont-Ferrand, France.
Aurélien MulliezDélégation à la Recherche Clinique et aux Innovations (DRCI), CHU Clermont-Ferrand, F-63000, Clermont-Ferrand, France.
Stéphane BoisgardCNRS, SIGMA Clermont, ICCF, CHU Clermont-Ferrand, Université Clermont Auvergne, F-63000, Clermont-Ferrand, France.
Stéphane DescampsCNRS, SIGMA Clermont, ICCF, CHU Clermont-Ferrand, Université Clermont Auvergne, F-63000, Clermont-Ferrand, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn total hip arthroplasty (THA), altering the original offset can lead to poor outcome or even complications or revision when the changes are too great. The aim of the present study was to compare femoral offset between short and standard stems. The hypothesis was that the short stems studied provide better control of post-operative femoral offset. PATIENTS AND

methodsWe retrospectively reviewed 100 consecutive THAs using uncemented optimys™ short stems (Mathys, Bettlach, Switzerland), matched to 100 standard stem THAs performed during the same period. The primary endpoint was femoral offset; secondary endpoints were the limb length and cervico-diaphyseal angle.

resultsThe mean femoral offset increased by 6.0 ± 7.2 mm overall (p < 0.0001), 4.7 ± 6.7 mm in the short-stem group (p < 0.0001), and 7.2 ± 7.5 mm in the standard stem group (p < 0.0001), with a significant inter-group difference (p = 0.0152). Limb length showed no significant inter-group difference (p = 0.8425). Cervico-diaphyseal angle was increased by surgery overall, and more by standard than by short stems (p < 0.05).

conclusionMeasurement of femoral offset revealed significant lateralization. It is critical that offset should be maintained in THA. The technique we use increases femoral offset, but the present study showed less increase using short than standard stems. These findings must be borne in mind to achieve good clinical outcome.

Indexed as

Hip ProsthesisProsthesis DesignAdolescentAdultAgedAged, 80 and overArthroplasty, Replacement, HipFemaleFemurHumansMaleMiddle AgedOsteoarthritis, KneeRetrospective StudiesYoung AdultCase-control studyFemoral offsetShort stemTotal hip arthroplasty

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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.