Evidence map›Paper›PMID 30569797›Full record

SynthesisActa orthopaedica2019

Relationship between outcome scores and knee laxity following total knee arthroplasty: a systematic review.

Andreas Kappel, Mogens Laursen, Poul T Nielsen, Anders Odgaard

Abstract readSystematic Review
In one paragraph

Synthesis in Acta orthopaedica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–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

13 citing papers in PubMed.

  1. Trial
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  8. Intra-operative laxity and balance impact 2-year pain outcomes in TKA: a prospective cohort study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Article
  9. Article
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  11. Correlation of quality of life with instrumented analysis of a total knee arthroplasty series at the long-term follow-up.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2021
    Article
  12. Article
  13. 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

4 authors.

Andreas Kappela Department of Orthopedic Surgery/Clinical Institute , Aalborg University Hospital , Aalborg , Denmark.
Mogens Laursena Department of Orthopedic Surgery/Clinical Institute , Aalborg University Hospital , Aalborg , Denmark.
Poul T Nielsena Department of Orthopedic Surgery/Clinical Institute , Aalborg University Hospital , Aalborg , Denmark.
Anders Odgaardb Department of Orthopedic Surgery , Copenhagen University Hospital Herlev-Gentofte , Hellerup , Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and purpose - Instability following primary total knee arthroplasty (TKA) is, according to all national registries, one of the major failure mechanisms leading to revision surgery. However, the range of soft-tissue laxity that favors both pain relief and optimal knee function following TKA remains unclear. We reviewed current evidence on the relationship between instrumented knee laxity measured postoperatively and outcome scores following primary TKA. Patients and methods - We conducted a systematic search of PubMed, Embase, and Cochrane databases to identify relevant studies, which were cross-referenced using Web of Science. Results - 14 eligible studies were identified; all were methodologically similar. Both sagittal and coronal laxity measurement were reported; 6 studies reported on measurement in both extension and flexion. In knee extension from 0° to 30° none of 11 studies could establish statistically significant association between laxity and outcome scores. In flexion from 60° to 90° 6 of 9 studies found statistically significant association. Favorable results were reported for posterior cruciate retaining (CR) knees with sagittal laxity between 5 and 10 mm at 75-80° and for knees with medial coronal laxity below 4° in 80-90° of flexion. Interpretation - In order to improve outcome following TKA careful measuring and adjusting of ligament laxity intraoperatively seems important. Future studies using newer outcome scores supplemented by performance-based scores may complement current evidence.

Indexed as

Joint InstabilityPostoperative ComplicationsArthroplasty, Replacement, KneeHumansKnee JointOutcome Assessment, Health CareRange of Motion, Articular

Identifiers

PMID30569797
PMCPMC6367957

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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.