Evidence map›Paper›PMID 34754835›Full record

ArticleWorld journal of orthopedics2021

Alignment of the hindfoot following total knee arthroplasty: A systematic review.

James J Butler, Nathaniel P Mercer, Eoghan T Hurley, Mohammad T Azam, John G Kennedy

Open access · diamondAbstract read
In one paragraph

Article in World journal of orthopedics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Review
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  7. Higher revision rates in patients with preoperative contralateral pes planovalgus deformity following total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    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

5 authors at 2 institutions in 2 countries.

James J ButlerDepartment of Orthopedic Surgery, Royal College Surgeons in Ireland, Dublin 18, Ireland.
Nathaniel P MercerDepartment of Orthopedic Surgery, NYU Langone Health, New York, NY 10002, United States.
Eoghan T HurleyDepartment of Orthopedic Surgery, Royal College Surgeons in Ireland, Dublin 18, Ireland.
Mohammad T AzamDepartment of Orthopedic Surgery, NYU Langone Health, New York, NY 10002, United States.
John G KennedyDepartment of Orthopedic Surgery, NYU Langone Health, New York, NY 10002, United States. john.kennedy@nyulangone.org.
Royal College of Surgeons in Ireland · IENYU Langone Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere appears to be a close relationship between deformities at the knee joint and at the hindfoot in patients with knee osteoarthritis (OA). Despite this intrinsic link, there is a dearth of studies investigating alterations in hindfoot alignment following total knee arthroplasty (TKA) in patients with knee OA.

aimTo evaluate changes in alignment of the hindfoot following TKA, foot and ankle clinical outcomes in terms of subjective clinical scoring tools following surgical intervention, and to analyse the level of evidence (LOE) and quality of evidence (QOE) of the included studies.

methodsMEDLINE, EMBASE and Cochrane Library databases were systematically reviewed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies reporting changes in the postoperative alignment of the hindfoot following TKA were included. The level and QOE were recorded and assessed.

resultsEleven studies with a total of 1142 patients (1358 knees) met the inclusion/ exclusion criteria. Six studies were of LOE II and 5 studies were of LOE III. Patients with preoperative varus knee deformity and valgus hindfoot deformity demonstrated improvement in hindfoot alignment post TKA. Patients with preoperative varus knee deformity and varus hindfoot deformity demonstrated no improvement in hindfoot alignment following TKA. Twelve different radiographic parameters were used to measure the alignment of the hindfoot across the included studies, with the tibio-calcaneal angle most frequently utilised (27.3%).

conclusionThis systematic review demonstrated that the hindfoot may display compensatory changes in alignment following TKA in patients with knee OA. However, the marked heterogeneity between the included studies and poor QOE limits any meaningful cross sectional comparisons between studies. Further, well designed studies are necessary to determine the changes and outcomes of hindfoot alignment following TKA.

Indexed as

HindfootHindfoot alignmentKnee osteoarthritisTotal knee arthroplastyValgus hindfoot deformityVarus knee deformity

Identifiers

PMID34754835
PMCPMC8554349
OpenAlexW3205348579

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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.