Evidence map›Paper›PMID 34629787›Full record

ArticleJournal of orthopaedics

Can obese patients undergo simultaneous bilateral total knee arthroplasty without an increased risk of perioperative complications?

Sean K Chan, Mariya I Opanova, Tyler J Thorne, Maya Y Matsumoto, Samantha N Andrews, Cass K Nakasone

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of orthopaedics. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.8field-weighted citation impact, top 26% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Article
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 1 institution in 1 country.

Sean K ChanUniversity of Hawai'i, John A Burns School of Medicine, 651 Ilalo Street, Honolulu, HI, 96813, USA.
Mariya I OpanovaUniversity of Hawai'i, John A. Burns School of Medicine, Department of Surgery, 1356 Lusitana Street, Honolulu, HI, 96813, USA.
Tyler J ThorneUniversity of Hawai'i, John A Burns School of Medicine, 651 Ilalo Street, Honolulu, HI, 96813, USA.
Maya Y MatsumotoUniversity of Hawai'i, John A Burns School of Medicine, 651 Ilalo Street, Honolulu, HI, 96813, USA.
Samantha N AndrewsUniversity of Hawai'i, John A. Burns School of Medicine, Department of Surgery, 1356 Lusitana Street, Honolulu, HI, 96813, USA.
Cass K NakasoneUniversity of Hawai'i, John A. Burns School of Medicine, Department of Surgery, 1356 Lusitana Street, Honolulu, HI, 96813, USA.
University of Hawaiʻi at Mānoa · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Simultaneous bilateral total knee arthroplasty (simBTKA) remains controversial, especially in obese patients. Therefore, this retrospective study compared six month perioperative complications in 313 simBTKA patients. Comparison groups included 139 non-obese patients (BMI < 30), 61 obese patients (BMI = 30-35) and 48 severely obese patients (BMI > 35). Increased BMI was associated with longer tourniquet and surgical times (p < 0.001). However, no differences were found for transfusion (p = 0.288), deep infection (p = 0.971), pulmonary embolism (p = 0.454), or deep vein thrombosis (p = 0.670). Increased BMI was, therefore, not associated with greater post-operative complications and should not necessarily contraindicate simBTKA.

Indexed as

ComplicationsObesitySimultaneous bilateralTotal knee arthroplastyTransfusion

Identifiers

PMID34629787
PMCPMC8479543
OpenAlexW3202088230

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.