Evidence map›Paper›PMID 37355529›Full record

ArticleInternational orthopaedics2023

Bilateral simultaneous hip arthroplasty shows comparable early outcome and complication rate as staged bilateral hip arthroplasty for patients scored ASA 1-3 if performed by a high-volume surgeon.

Stephanie Kirschbaum, Robert Hube, Carsten Perka, Christophe Ley, Simone Rosaria, Michael Najfeld

Open access · hybridAbstract read
In one paragraph

Article in International orthopaedics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 9% 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.

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

6 citing papers in PubMed, 2 syntheses or guidelines pooled it, 9 citations in OpenAlex.

  1. Simultaneous versus staged bilateral total hip arthroplasty: a meta-analysis.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2026
    Pooled it
  2. Pooled it
  3. Simultaneous or Staged Bilateral Total Hip Arthroplasty: An Analysis of 82,897 Patients.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2025
    Article
  4. Article
  5. Article
  6. Similar complication and readmission rates following simultaneous versus staged bilateral total hip arthroplasty.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
    Review
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 at 4 institutions in 3 countries.

Stephanie KirschbaumCentre for Musculoskeletal Surgery, Charité-University Hospital Berlin, Charitéplatz 1, 10117, Berlin, Germany. stephanie.kirschbaum@charite.de.ORCID 0000-0001-8263-4354
Robert HubeOCM Orthopädische Chirurgie München, Steinerstraße 6, 81369, Munich, Germany.
Carsten PerkaCentre for Musculoskeletal Surgery, Charité-University Hospital Berlin, Charitéplatz 1, 10117, Berlin, Germany.
Christophe LeyUniversity of Luxembourg, 2 Av. de l'Universite, 4365, Esch-sur-Alzette, Luxembourg.
Simone RosariaUniversity of Napoli Federico II, Corso Umberto I 40, 80138, Naples, Italy.
Michael NajfeldOCM Orthopädische Chirurgie München, Steinerstraße 6, 81369, Munich, Germany.
Charité - Universitätsmedizin Berlin · DEMünchen Klinik · DEUniversity of Luxembourg · LUUniversity of Naples Federico II · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to compare early outcomes after simultaneous and staged hip arthroplasty (THA) in patients with bilateral symptomatic pathology.

methodsWe conducted a retrospective cohort study including all patients scheduled for primary THA for bilateral hip osteoarthritis (OA, n = 290). Patients either received simultaneous (n = 152, 52.4%) or staged (n = 138, 47.6%) bilateral THA based on individual preference. All operations (n = 428) were performed by one single, high-volume surgeon. Demographic data (e.g., age, ASA score) as well as perioperative parameters (haemoglobin drop (Hb), red blood cell transfusion, length of stay (LOS), operation time, six week complication rate and achievement of inpatient rehabilitation key points) were evaluated.

resultsPatients in the simultaneous bilateral THA group were younger (62.8 ± 8.9 vs. 65 ± 9.7 years, p = 0.022) and had lower ASA scores (1.8, (34.2% ASA 1, 55.3% ASA 2, 37.2% ASA 3) vs. 2.0 (18.8% ASA 1, 61.6% ASA 2, 19.6% ASA 3)) than the staged group. While the average LOS was 7.1 ± 1.7 days for simultaneous bilateral THA, the combined LOS for the staged group was 12.9 ± 2.4 days (p < 0.001). The cumulative operation time in the simultaneous bilateral THA group was 61.1 ± 11.5 min and 57.6 ± 7.3 min in the staged group (p < 0.015). Cumulative Hb loss was significantly higher in the staged group (2.1 ± 7.2 g/dl vs. 3.7 ± 1.3 g/dl, p < 0.001). No significant differences were found concerning the complication rate or early inpatient rehabilitation.

conclusionSimultaneous bilateral hip arthroplasty in patients with symptomatic bilateral hip osteoarthritis is as safe and successful as a staged procedure if performed by a high-volume surgeon.

Indexed as

Arthroplasty, Replacement, HipOsteoarthritis, HipSurgeonsHumansPatientsPostoperative ComplicationsRetrospective StudiesBilateral simultaneous hip arthroplastyComplicationsOne-stage hip arthroplastyStaged hip arthroplastyTwo-stage hip arthroplasty

Identifiers

PMID37355529
PMCPMC10522735
OpenAlexW4381929983

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LicenceCC BY
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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.