Evidence map›Paper›PMID 22581351›Full record

ArticleArchives of orthopaedic and trauma surgery2012

A new method to measure ligament balancing in total knee arthroplasty: laxity measurements in 100 knees.

Eirik Aunan, Thomas Kibsgård, John Clarke-Jenssen, Stephan M Röhrl

2 registry-linked trialsOpen access · hybridAbstract read
In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 10% 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.

NCT04017533 nacompletednot on this mapstarted 2021, after this paper: background citation

In Vivo Stability of an Uncemented Total Knee Arthroplasty With Medially Stabilized Design

TypeinterventionalSponsorOslo University HospitalRan2021 to 2024Enrolled31ConditionsKnee OsteoarthritisArmsGMK Sphere TKR
NCT06264076 narecruitingnot on this mapstarted 2024, after this paper: background citation

Ligament Balancing in Total Knee Arthroplasty - A Proof-of-Concept Study on a Systematic Approach to Bellemans Technique

TypeinterventionalSponsorOslo University HospitalRan2024 to 2026Enrolled40ConditionsLigament, Laxity, Knee, Knee OsteoarthritisArmsA novel instrument for ligament balancing in total knee arthroplasty, Novel Instrument for ligament balancing in knee arthroplasty
3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Radiological outcomes of pinless navigation in total knee arthroplasty: a randomized controlled trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015
    Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. [Short-term effectiveness of novel computer navigation system assisted total knee arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Intraoperative ligament laxity influences functional outcome 1 year after total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015
    Article
  13. Article
  14. Lack of evidence to support present medial release methods in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014
    Review
  15. Article
  16. No difference in accuracy between pinless and conventional computer-assisted surgery in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014
    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 at 2 institutions in 1 country.

Eirik AunanDepartment of Surgery, Innlandet Hospital Trust, Anders Sandvigs Gate 17, 2629, Lillehammer, Norway. eirik.aunan@sykehuset-innlandet.no
Thomas Kibsgård
John Clarke-Jenssen
Stephan M Röhrl
Oslo University Hospital · NOInnlandet Hospital Trust · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLigament balancing is considered a prerequisite for good function and survival in total knee arthroplasty (TKA). However, there is no consensus on how to measure ligament balance intra-operatively and the degree of stability obtained after different balancing techniques is not clarified. PURPOSE: This study presents a new method to measure ligament balancing in TKA and reports on the results of a try-out of this method and its inter-observer reliability.

methodsAfter the implantation of the prosthesis, spatulas of different thickness were used to measure medial and lateral condylar lift-off in flexion and extension in 70 ligament-balanced knees and in 30 knees were ligament balancing was considered unnecessary. Inter-observer reliability for the new method was estimated and the degree of medial-lateral symmetry in extension and in flexion, and the equality of the extension gaps and flexion gaps were calculated.

resultsThe method was feasible in all operated knees, and found to be very reliable (intraclass correlation coefficient = 0.88). We found no statistically significant difference in condylar lift-off between the ligament-balanced and the non ligament-balanced group, however, there was a tendency to more outliers in flexion in the ligament-balanced group.

conclusionsOur method for measuring ligament balance is reliable and provides valuable information in assessing laxity intra-operatively. This method may be a useful tool in further research on the relationship between ligament balance, function and survival of TKA.

Indexed as

AdultAgedAged, 80 and overArthroplasty, Replacement, KneeBody Weights and MeasuresFemaleHumansJoint InstabilityLigaments, ArticularMaleMiddle AgedObserver VariationProspective Studies

Identifiers

PMID22581351
PMCPMC3400753
OpenAlexW1969517751

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.