Evidence map›Paper›PMID 25354558›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2016

Change in collateral ligament length and tibiofemoral movement following joint line variation in TKA.

Kun-Jhih Lin, Hung-Wen Wei, Chang-Hung Huang, Yu-Liang Liu, Wen-Chuan Chen, Colin Joseph McClean, Cheng-Kung Cheng

Abstract read
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In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. The prevalence, classification, radiological and arthroscopic findings of intratendinous subscapularis tears.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Article
  3. Effect of additional distal femoral resection on flexion deformity in posterior-stabilized total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Article
  4. Article
  5. 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.

Kun-Jhih LinTechnology Translation Center for Medical Device, Chung Yuan Christian University, Chungli City, Taiwan.
Hung-Wen WeiTechnology Translation Center for Medical Device, Chung Yuan Christian University, Chungli City, Taiwan.
Chang-Hung HuangBiomechanics Research Laboratory, Department of Biomedical Research, Mackay Memorial Hospital, New Taipei City, Taiwan.
Yu-Liang LiuUnited Orthopedic Corporation, Taipei, Taiwan.
Wen-Chuan ChenOrthopaedic Device Research Center, National Yang-Ming University, Taipei, Taiwan.
Colin Joseph McCleanOrthopaedic Biomechanics Laboratory, Institute of Biomedical Engineering, National Yang-Ming University, No. 155, Sec. 2, Li-Nung St., Shih-Pai, Taipei, 11221, Taiwan.
Cheng-Kung ChengOrthopaedic Biomechanics Laboratory, Institute of Biomedical Engineering, National Yang-Ming University, No. 155, Sec. 2, Li-Nung St., Shih-Pai, Taipei, 11221, Taiwan. ckcheng2009@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe primary intent of total knee arthroplasty is the restoration of normal knee kinematics, with ligamentous constraint being a key influential factor. Displacement of the joint line may lead to alterations in ligament attachment sites relative to knee flexion axis and variance of ligamentous constraints on tibiofemoral movement. This study aimed to investigate collaterals strains and tibiofemoral kinematics with different joint line levels.

methodsA previously validated knee model was employed to analyse the change in length of the collateral ligaments and tibiofemoral motion during knee flexion. The models shifted the joint line by 3 and 5 mm both proximally and distally from the anatomical level. The data were captured from full extension to flexion 135°.

resultsThe elevated joint line revealed a relative increase in distance between ligament attachments for both collateral ligaments in comparison with the anatomical model. Also, tibiofemoral movement decreased with an elevation in the joint line. Conversely, lowering the joint line led to a significant decrease in distance between ligament attachments, but greater tibiofemoral motion.

conclusionElevation of the joint line would strengthen the capacity of collateral ligaments for knee motion constraint, whereas a distally shifted joint line might have the advantage of improving tibiofemoral movement by slackening the collaterals. It implies that surgeons can appropriately change the joint line position in accordance with patient's requirement or collateral tensions. A lowered joint line level may improve knee kinematics, whereas joint line elevation could be useful to maintain knee stability. LEVEL OF EVIDENCE: V.

Indexed as

Arthroplasty, Replacement, KneeBiomechanical PhenomenaCollateral LigamentsHumansKnee JointModels, AnatomicMovementMuscle, SkeletalRange of Motion, ArticularCollateral ligamentJoint lineKnee kinematicsLength changeTotal knee arthroplasty

Identifiers

PMID25354558

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.