Evidence map›Paper›PMID 35049222›Full record

Observational studyMedicine2021

Risk factors of postoperative complications following total knee arthroplasty in Korea: A nationwide retrospective cohort study.

Min-Seok Ko, Chong-Hyuk Choi, Han-Kook Yoon, Ju-Hyung Yoo, Hyun-Cheol Oh, Jin-Ho Lee, Sang-Hoon Park

Abstract readObservational Study
In one paragraph

Observational study in Medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
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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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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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

7 authors.

Min-Seok KoDepartment of Orthopedic Surgery, Yonsei University College of Medicine, Seoul, South Korea.
Chong-Hyuk ChoiDepartment of Orthopedic Surgery, Yonsei University College of Medicine, Seoul, South Korea.
Han-Kook YoonDepartment of Orthopedic Surgery, National Health Insurance Service, Ilsan Hospital, Goyang, South Korea.
Ju-Hyung YooDepartment of Orthopedic Surgery, National Health Insurance Service, Ilsan Hospital, Goyang, South Korea.
Hyun-Cheol OhDepartment of Orthopedic Surgery, National Health Insurance Service, Ilsan Hospital, Goyang, South Korea.
Jin-Ho LeeDepartment of Orthopedic Surgery, Yonsei University College of Medicine, Seoul, South Korea.
Sang-Hoon ParkDepartment of Orthopedic Surgery, National Health Insurance Service, Ilsan Hospital, Goyang, South Korea.ORCID 0000-0002-9085-6667

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe number of patients undergoing total knee arthroplasty (TKA) is gradually increasing and there is also increase in postoperative complications. The patient's demographic, socio-economic factors, hospital and clinical factors are all factors that can influence postoperative complications. The purpose of this study was to determine the risk factors associated with complications following TKA in a large national cohort.

methodsAmong patients diagnosed with primary knee arthrosis, a total of 560,954 patients older than 50 years who underwent TKA from January 1, 2005 to December 31, 2018 were included in the study. The risk of postoperative complications (surgical site infection, sepsis, cardiovascular complications, respiratory complications, pulmonary embolism, stroke, acute renal failure, periprosthetic joint infection, and periprosthetic fracture) were assessed with eight independent variables: gender, age, place of residence, household income, hospital bed size, procedure type (unilateral or bilateral, primary or revision TKA), length of stay (LOS), use of transfusion. Multivariable Cox Proportional Hazard model analysis was used. The significant predictors for complications (P < .05) were as follows.

resultsSurgical site infection: male, procedure type (bilateral, revision), LOS (≥35 days), transfusion. Sepsis: male, household income, procedure type (bilateral, revision), LOS (≥35 days), transfusion. Cardiovascular complications: male, age, household income, procedure type (bilateral, revision), LOS (≥35 days), transfusion. Respiratory complications: male, household income, procedure type (bilateral, revision), LOS (≥35 days), transfusion. Pulmonary embolism: male, household income, procedure type (bilateral, revision), LOS (≥35 days), transfusion. Stroke: male, age, procedure type (bilateral, revision), LOS (≥35 days), transfusion. Acute renal failure: male, household income, procedure type (bilateral, revision), LOS (≥35 days), transfusion. Periprosthetic joint infection: male, household income, procedure type (bilateral, revision), LOS (≥35 days), transfusion. Periprosthetic fracture: male, procedure type (bilateral, revision), LOS (≥35 days), transfusion.

conclusionIn summary, male, procedure type (bilateral, revision), LOS (≥35 days), and use of transfusion were shown to be risk factors of postoperative complications following TKA.

Indexed as

Arthroplasty, Replacement, KneeSurgical Wound InfectionAgedAged, 80 and overCohort StudiesFemaleHumansMaleMiddle AgedPostoperative ComplicationsProsthesis-Related InfectionsPulmonary EmbolismRetrospective StudiesRisk FactorsSepsisStroke

Identifiers

PMID35049222
PMCPMC9191393

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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.