Evidence map›Paper›PMID 32630654›Full record

ArticleJournal of clinical medicine2020

Elongation Patterns of the Posterior Cruciate Ligament after Total Knee Arthroplasty.

Seyyed Hamed Hosseini Nasab, Colin Smith, Pascal Schütz, Barbara Postolka, Stephen Ferguson, William R Taylor, Renate List

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

7 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. [Effectiveness comparison of partial versus intact posterior cruciate ligament-retaining in total knee arthroplasty with cruciate-retaining prosthesis].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021
    Article
  7. Review
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 1 institution in 1 country.

Seyyed Hamed Hosseini NasabInstitute for Biomechanics, ETH Zurich, 8093 Zurich, Switzerland.ORCID 0000-0002-3518-3316
Colin SmithInstitute for Biomechanics, ETH Zurich, 8093 Zurich, Switzerland.
Pascal SchützInstitute for Biomechanics, ETH Zurich, 8093 Zurich, Switzerland.
Barbara PostolkaInstitute for Biomechanics, ETH Zurich, 8093 Zurich, Switzerland.ORCID 0000-0002-1996-1501
Stephen FergusonInstitute for Biomechanics, ETH Zurich, 8093 Zurich, Switzerland.
William R TaylorInstitute for Biomechanics, ETH Zurich, 8093 Zurich, Switzerland.ORCID 0000-0003-4060-4098
Renate ListInstitute for Biomechanics, ETH Zurich, 8093 Zurich, Switzerland.ORCID 0000-0003-3292-1915
ETH Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to understand the ability of fixed-bearing posterior cruciate ligament (PCL)-retaining implants to maintain functionality of the PCL in vivo. To achieve this, elongation of the PCL was examined in six subjects with good clinical and functional outcomes using 3D kinematics reconstructed from video-fluoroscopy, together with multibody modelling of the knee. Here, length-change patterns of the ligament bundles were tracked throughout complete cycles of level walking and stair descent. Throughout both activities, elongation of the anterolateral bundle exhibited a flexion-dependent pattern with more stretching during swing than stance phase (e.g., at 40° flexion, anterolateral bundle experienced 3.9% strain during stance and 9.1% during swing phase of stair descent). The posteromedial bundle remained shorter than its reference length (defined at heel strike of the level gait cycle) during both activities. Compared with loading patterns of the healthy ligament, postoperative elongation patterns indicate a slackening of the ligament at early flexion followed by peak ligament lengths at considerably smaller flexion angles. The reported data provide a novel insight into in vivo PCL function during activities of daily living that has not been captured previously. The findings support previous investigations reporting difficulties in achieving a balanced tension in the retained PCL.

Indexed as

dynamic activityfunctionknee implantposterior cruciate ligamentstrainvideo-fluoroscopy

Identifiers

PMID32630654
PMCPMC7408829
OpenAlexW3038460975

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.