Evidence map›Paper›PMID 37016808›Full record

Trial reportHip international : the journal of clinical and experimental research on hip pathology and therapy2024

Acetabular cup fixation with and without screws following primary total hip arthroplasty: migration evaluated by radiostereometric analysis.

Jennifer S Polus, Edward M Vasarhelyi, Brent A Lanting, Matthew G Teeter

Registry-linked trialOpen access · hybridAbstract readClinical Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Hip international : the journal of clinical and experimental research on hip pathology and therapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03558217 (Comparing Direct Anterior and Lateral Surgical Approaches for Collared and Collarless Implants and Correlating Joint Motion to Hip Implant Performance), which is not on this map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.2field-weighted citation impact, top 13% 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.

NCT03558217 nacompletednot on this map

Comparing Direct Anterior and Lateral Surgical Approaches for Collared and Collarless Implants and Correlating Joint Motion to Hip Implant Performance

TypeinterventionalSponsorLondon Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph'sRan2018 to 2021Enrolled96ConditionsHip Osteoarthritis, Hip ArthroplastyArmsCollared Femoral Implant, Collarless Femoral Implant
3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 7 citations in OpenAlex.

  1. [Arterial safe zones for acetabular screw placement in total hip arthroplasty: sex-based differences and individualized strategies].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
    Article
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  3. Review
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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

4 authors at 1 institution in 1 country.

Jennifer S PolusSchool of Biomedical Engineering, Western University, London, Ontario, Canada.ORCID 0000-0002-2070-0253
Edward M VasarhelyiDivision of Orthopaedic Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.
Brent A LantingDivision of Orthopaedic Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.
Matthew G TeeterSchool of Biomedical Engineering, Western University, London, Ontario, Canada.
Western University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEarly cup migration after total hip arthroplasty (THA) is correlated to late revision due to aseptic loosening. However, the use of screws for increased cup stability remains unclear and debated. The purpose of this study is to assess acetabular migration between cups fixated with and without the use of screws.

methodsPatients underwent primary THA using either a direct anterior (DA) or a direct lateral (DL) approach. The DA surgeon routinely supplemented cup fixation with 1 or 2 screws while the DL surgeon used no screws. At 7 follow-up visits up to 2 years post operation, patients underwent radiostereometric analysis (RSA) imaging for implant migration tracking. The primary outcome was defined as proximal cup migration measured with model-based RSA.

results68 patients were assessed up to 2 years post operation,

conclusionsAcetabular cups fixated with only 1 screw resulted in greater migration than cups with no screws or 2 screws, though the mean magnitude was well under the 1.0 mm threshold for unacceptable migration. However, 3 of the 24 patients who received only 1 screw exceeded the 1.0 mm threshold for unacceptable migration. Ultimately, the results of this study show that the use of 2 screws to supplement cup fixation can provide good implant stability that is equivalent to a secure press-fit component with no screws.Clinical trial registration: ClinicalTrials.gov (NCT03558217).

Indexed as

Arthroplasty, Replacement, HipHip ProsthesisAcetabulumBone ScrewsFollow-Up StudiesHumansProsthesis DesignProsthesis FailureRadiostereometric AnalysisAcetabular cupmigrationradiostereometric analysisscrew fixationtotal hip arthroplasty

Identifiers

PMID37016808
PMCPMC10787387
OpenAlexW4362602080

What OpenQuestion holds

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LicenceCC BY
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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.