Evidence map›Paper›PMID 31974870›Full record

Observational studyAnnals of biomedical engineering2020

Length-Change Patterns of the Collateral Ligaments During Functional Activities After Total Knee Arthroplasty.

S H Hosseini Nasab, C R Smith, P Schütz, P Damm, A Trepczynski, R List, W R Taylor

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in Annals of biomedical engineering, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.3field-weighted citation impact, top 8% 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.

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

12 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. From fibre to function: are we accurately representing muscle architecture and performance?Biological reviews of the Cambridge Philosophical Society · 2022
    Review
  8. Article
  9. Review
  10. Article
  11. A geometric ratio to predict the flexion gap in total knee arthroplasty.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2020
    Article
  12. 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 at 2 institutions in 2 countries.

S H Hosseini NasabInstitute for Biomechanics, ETH Zürich, Leopold-Ruzicka-Weg 4, 8093, Zurich, Switzerland.
C R SmithInstitute for Biomechanics, ETH Zürich, Leopold-Ruzicka-Weg 4, 8093, Zurich, Switzerland.
P SchützInstitute for Biomechanics, ETH Zürich, Leopold-Ruzicka-Weg 4, 8093, Zurich, Switzerland.
P DammJulius Wolff Institute, Charité - Universitätsmedizin Berlin, Berlin, Germany.
A TrepczynskiJulius Wolff Institute, Charité - Universitätsmedizin Berlin, Berlin, Germany.
R ListInstitute for Biomechanics, ETH Zürich, Leopold-Ruzicka-Weg 4, 8093, Zurich, Switzerland.
W R TaylorInstitute for Biomechanics, ETH Zürich, Leopold-Ruzicka-Weg 4, 8093, Zurich, Switzerland. bt@ethz.ch.ORCID http://orcid.org/0000-0003-4060-4098
ETH Zurich · CHBerlin Institute of Health at Charité - Universitätsmedizin Berlin · DE

Funding

German Research Foundation (DFG) TR 1657/1-1
6 · The paper itself

Abstract

This study aimed to quantify the elongation patterns of the collateral ligaments following TKA during functional activities of daily living. Using mobile video-fluoroscopy to capture radiographic images of the knee in a group of six patients, each with an ultra-congruent knee implant, tibiofemoral kinematics were reconstructed throughout complete cycles of level gait, downhill walking, stair descent, and squat activities. Kinematic data were then used to drive subject-specific multibody knee models to estimate length-change patterns of the LCL as well as three bundles of the MCL. In addition, a sensitivity analysis examined the role of the attachment site in the elongation patterns. Our data indicate a slackening of the LCL but non-uniform length-change patterns across the MCL bundles (ranging from lengthening of the anterior fibers to shortening of the posterior fibers) with increasing knee flexion angle. Near-isometric behavior of the intermediate fibers was observed throughout the entire cycle of the studied activities. These length-change patterns were found to be largely consistent across different activities. Importantly, length-change patterns were critically sensitive to the location of the femoral attachment points relative to the femoral component. Thus, in TKA with ultra-congruent implants, implantation of the femoral component may critically govern post-operative ligament function.

Indexed as

Activities of Daily LivingArthroplasty, Replacement, KneeAgedBiomechanical PhenomenaCollateral LigamentsFemurHumansKneeKnee ProsthesisMiddle AgedMovementTibiaElongationFluoroscopyLCLMCLMultibody modelTKA

Identifiers

PMID31974870
PMCPMC7089910
OpenAlexW3000823353

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.