Evidence map›Paper›PMID 32112227›Full record

ArticleDer Orthopade2020

Acetabular defect classification and management : Revision arthroplasty of the acetabular cup based on 3-point fixation.

Mohamed Ghanem, Dirk Zajonz, Christoph-Eckhard Heyde, Andreas Roth

Abstract read
In one paragraph

Article in Der Orthopade, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. [Periprosthetic acetabular fracture].Unfallchirurgie (Heidelberg, Germany) · 2026
    Review
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  13. Acetabular Wall Weakening in Total Hip Arthroplasty: A Pilot Study.Pathophysiology : the official journal of the International Society for Pathophysiology · 2023
    Article
  14. Article
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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.

Mohamed GhanemDepartment of Orthopaedic Surgery, Traumatology and Plastic Surgery, Universitätsklinikum Leipzig, Liebigstraße 20, 04103, Leipzig, Germany. Mohamed.Ghanem@medizin.uni-leipzig.de.
Dirk ZajonzDepartment of Orthopaedic Surgery, Traumatology and Plastic Surgery, Universitätsklinikum Leipzig, Liebigstraße 20, 04103, Leipzig, Germany.
Christoph-Eckhard HeydeDepartment of Orthopaedic Surgery, Traumatology and Plastic Surgery, Universitätsklinikum Leipzig, Liebigstraße 20, 04103, Leipzig, Germany.
Andreas RothDepartment of Orthopaedic Surgery, Traumatology and Plastic Surgery, Universitätsklinikum Leipzig, Liebigstraße 20, 04103, Leipzig, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe purpose of this study was to provide a practicable and contemporary classification system that is reliable and pragmatic with respect to perioperative evaluation, planning, scientific comparison and analysis. MATERIAL AND

methodsThis was a retrospective study of 160 patients who underwent acetabular revision surgery after THR due to loosening of the acetabular cup. The assessment of the acetabular defect was based on intraoperative description of the bony configuration of the acetabulum as well as on standardized preoperative planning images (pelvic overview and axial view of the hip joint). Preoperative computed tomography (CT) was carried out in individual cases.

resultsAcetabular bone defects were classified into 4 types based on whether or not a 3-point fixation of the acetabular cup within the boundaries of the acetabular cavity was possible. Minor segmental defects or cup loosening without bone loss can be treated with standard hemispherical acetabular components. Bone loss can be filled with bone grafts and/or treated by the appropriate acetabular component in order to ensure stable anchorage. When conventional revision cups are no longer suitable a custom made partial pelvic replacement can be used.

conclusionThe proposed classification mainly relies on intraoperative findings which were confirmed by preoperative imaging in 154 cases out of 160 (96.25%); however, meticulous preoperative planning based on X‑ray radiographs must be carried out. In addition, a CT scan must be performed whenever type III or type IV defects are anticipated. Compared to the existing classification systems, we can state that our classification system is practicable and pragmatic and simplifies the assessment of bone defects.

Indexed as

Arthroplasty, Replacement, HipHip ProsthesisPlastic Surgery ProceduresAcetabulumDiagnostic ImagingFollow-Up StudiesHip JointHumansProsthesis FailureReoperationRetrospective StudiesTomography, X-Ray ComputedTreatment OutcomeComputed tomographyDiagnostic imagingRetrospective studyRevision arthroplastyTotal hip replacement

Identifiers

PMID32112227
PMCPMC7198480

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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.