Evidence map›Paper›PMID 27274468›Full record

ArticleKnee surgery & related research2016

Active Flexion in Weight Bearing Better Correlates with Functional Outcomes of Total Knee Arthroplasty than Passive Flexion.

Young Dong Song, Nimash Jain, Yeon Gwi Kang, Tae Yune Kim, Tae Kyun Kim

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Article in Knee surgery & related research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

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0cells of the map it votes in
4citing papers in PubMed
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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.

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3 · Its place in the literature

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4 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Young Dong SongDepartment of Orthopaedic Surgery, Center for Joint Surgery, National Medical Center, Seoul, Korea.
Nimash JainDepartment of Orthopaedic Surgery, Joint Reconstruction Center, Seoul National University Bundang Hospital, Seongnam, Korea.
Yeon Gwi KangDepartment of Orthopaedic Surgery, Joint Reconstruction Center, Seoul National University Bundang Hospital, Seongnam, Korea.
Tae Yune KimDepartment of Orthopaedic Surgery, Joint Reconstruction Center, Seoul National University Bundang Hospital, Seongnam, Korea.
Tae Kyun KimDepartment of Orthopaedic Surgery, Joint Reconstruction Center, Seoul National University Bundang Hospital, Seongnam, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCorrelations between maximum flexion and functional outcomes in total knee arthroplasty (TKA) patients are reportedly weak. We investigated whether there are differences between passive maximum flexion in nonweight bearing and other types of maximum flexion and whether the type of maximum flexion correlates with functional outcomes. MATERIALS AND

methodsA total of 210 patients (359 knees) underwent preoperative evaluation and postoperative follow-up evaluations (6, 12, and 24 months) for the assessment of clinical outcomes including maximum knee flexion. Maximum flexion was measured under five conditions: passive nonweight bearing, passive weight bearing, active nonweight bearing, and active weight bearing with or without arm support. Data were analyzed for relationships between passive maximum flexion in nonweight bearing by Pearson correlation analyses, and a variance comparison between measurement techniques via paired t test.

resultsWe observed substantial differences between passive maximum flexion in nonweight bearing and the other four maximum flexion types. At all time points, passive maximum flexion in nonweight bearing correlated poorly with active maximum flexion in weight bearing with or without arm support. Active maximum flexion in weight bearing better correlated with functional outcomes than the other maximum flexion types.

conclusionsOur study suggests active maximum flexion in weight bearing should be reported together with passive maximum flexion in nonweight bearing in research on the knee motion arc after TKA.

Indexed as

Active flexionArthroplastyKneeOutcome

Identifiers

PMID27274468
PMCPMC4895083

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