Evidence map›Paper›PMID 27161197›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2017

Cementless versus cemented Oxford unicompartmental knee arthroplasty: early results of a non-designer user group.

B Kerens, M G M Schotanus, B Boonen, P Boog, P J Emans, H Lacroix, N P Kort

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Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  11. [Research progress in unicompartmental knee arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2020
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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.

B KerensAZ St Maarten, Leopoldstraat 2, Mechelen, Belgium. bartkerens@hotmail.com.ORCID http://orcid.org/0000-0003-1269-6909
M G M SchotanusZuyderland Medical Centre, Sittard-Geleen, The Netherlands.
B BoonenZuyderland Medical Centre, Sittard-Geleen, The Netherlands.
P BoogElkerliek Ziekenhuis, Helmond, The Netherlands.
P J EmansMaastricht University Medical Centre, Maastricht, The Netherlands.
H LacroixElkerliek Ziekenhuis, Helmond, The Netherlands.
N P KortZuyderland Medical Centre, Sittard-Geleen, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlthough fewer tibial radiolucent lines are observed in cementless Oxford unicompartmental knee arthroplasty (UKA) compared with cemented Oxford UKA, an independent comparative study on this topic is lacking.

methodsIn this multicentre retrospective study, a cohort of 60 consecutive cases of cementless Oxford UKA is compared with a cohort of 60 consecutive cases of cemented Oxford UKA. Radiolucent lines, survival, perioperative data and clinical results were compared.

resultsNo complete tibial radiolucent lines were observed in either group. Seventeen per cent of partial tibial radiolucent lines were observed in the cementless group versus 21 % in the cemented group (n.s.). The percentage of tibial radiolucent zones was 4 versus 9 %, respectively (p = 0.036). Survival rates were 90 % at 34 months for the cementless group and 84 % at 54 months for the cemented group (n.s.). Mean operation time was 10 min shorter in the cementless group (p < 0.001), and clinical results were not significantly different.

conclusionsAlthough no significant differences in radiolucent lines were found between both groups, they appear to be more common in the cemented group. This confirms previous results from reports by prosthesis designers. The presence of radiolucent lines after cemented Oxford UKA does not correlate with clinical outcome or survival. LEVEL OF EVIDENCE: III.

Indexed as

Knee ProsthesisProsthesis DesignAgedAged, 80 and overArthroplasty, Replacement, KneeBone CementsCase-Control StudiesFemaleHumansKaplan-Meier EstimateMaleMiddle AgedOsteoarthritis, KneePostoperative ComplicationsRetrospective StudiesTibiaBone CementsCementedCementlessOxford unicompartmental knee arthroplastyRadiolucent linesSurvival

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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.