Evidence map›Paper›PMID 33717897›Full record

ArticleJournal of clinical orthopaedics and trauma2021

Bilateral total knee arthroplasty: Simultaneous versus staging in the same or in twice hospitalization.

Mohsen Mardani-Kivi, Ehsan Kazemnejad Leili, Nazanin Torfeh, Zoleikha Azari

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical orthopaedics and trauma, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 23% 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

9 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Review
  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
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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 2 institutions in 1 country.

Mohsen Mardani-KiviGhaem Clinical Research Development Unit, Guilan University of Medical Sciences, Rasht, Iran.
Ehsan Kazemnejad LeiliStatistics Department, School of Health, Guilan University of Medical Sciences, Rasht, Iran.
Nazanin TorfehGhaem Clinical Research Development Unit, Guilan University of Medical Sciences, Rasht, Iran.
Zoleikha AzariDepartment of Anatomical Sciences & Cell Biology, Mashhad University of Medical Sciences, Mashhad, Iran.
Guilan University of Medical Sciences · IRMashhad University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectiveArthroplasty is the main treatment in patients with advanced knee osteoarthritis. In bilateral lesions, it is frequently performed in two simultaneous or separate surgical procedures. In this regard, the present study aimed to compare the results of knee arthroplasty in two joints simultaneously at two different times.

methodIn general, all 40-70 years old patients in need of complete bilateral total knee arthroplasty (BTKA) were enrolled in this descriptive cross-sectional study during 2009-2016. They were included in three groups of BTKA as simultaneously (n = 272), staging in the same hospitalization (146), and staging in different hospitalizations (245). To assess the quantitative and qualitative function of the knees, patients' knees were evaluated before the surgery, and one month, three months, and two years after the surgery using the Knee Society Score (KSS) and Western Ontario and McMaster Universities Arthritis Index (WOMAC). Finally, hospitalization time, anesthesia duration, and medical costs were compared between the three groups.

resultsBased on the results, knee function improved based on WOMAC and KSS scales in all groups after arthroplasty although no significant differences were observed between the three groups. Patients' satisfaction in simultaneous BTKA was significantly higher compared to the other two groups (

conclusionOverall, simultaneous BTKA is a useful approach for reducing costs while increasing patients' function and satisfaction although it has certain complications such as embolism in older overweight patients.

Indexed as

Bilateral total knee arthroplastyComplicationsHospitalization timeOsteoarthritis

Identifiers

PMID33717897
PMCPMC7920008
OpenAlexW3089034355

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.