Evidence map›Paper›PMID 23881257›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2013

Joint line reconstruction in medial unicompartmental knee arthroplasty: development and validation of a measurement method.

Patrick Weber, Christian Schröder, Rüdiger Paul Laubender, Andrea Baur-Melnyk, Christoph von Schulze Pellengahr, Volkmar Jansson, Peter E Müller

Abstract readValidation Study
PubMed Publisher
In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 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, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. [Research progress on finite element analysis of unicompartmental knee arthroplasty in medial knee compartmental osteoarthritis].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021
    Review
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  13. The adductor ratio: a new tool for joint line reconstruction in revision TKA.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014
    Article
  14. 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

7 authors.

Patrick WeberDepartment of Orthopaedic Surgery, Ludwig-Maximilians-University, Campus Grosshadern, Marchioninistr. 15, 81377, Munich, Germany, patrick.weber@med.uni-muenchen.de.
Christian Schröder
Rüdiger Paul Laubender
Andrea Baur-Melnyk
Christoph von Schulze Pellengahr
Volkmar Jansson
Peter E Müller

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePreservation of the joint line in total knee arthroplasty (TKA) has shown to be an important factor for the long-term outcome, especially in revision TKA. For unicompartmental knee arthroplasty (UKA), the role of the joint line has neither been investigated nor is it consciously respected during implantation. Thus, the aim was to establish and validate a standardised measurement method to determine the joint line in UKA.

methodsAs there is no established method to evaluate changes in the joint line radiologically, we introduced two methods and correlated them. The methods were first validated in a cadaver model by a controlled rotational study. Then, the joint line of 29 patients with an UKA (Oxford, Biomet, Bridgend, UK) was determined on pre- and post-operative radiographs. Both methods were tested by intra- and inter-rater reliability.

resultsBoth methods showed a good intra- and inter-rater reliability. Furthermore, there was only little bias in agreement between both methods and raters. Measurements of the 29 UKA patients revealed that the joint line was more distally by a mean of 4.4 ± 1.2 mm after surgery.

conclusionsThe study provides for the first time a reliable and standardised measurement tool to determine the changes in the joint line after implantation of an UKA. The instrument should be used in further studies to evaluate the impact of the joint line on the long-term outcome, the load in the two non-replaced knee compartments and on the ligaments.

Indexed as

Arthroplasty, Replacement, KneeBone MalalignmentHumansJoint DiseasesKnee JointKnee ProsthesisRadiographyReproducibility of ResultsRotation

Identifiers

What OpenQuestion holds

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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.