Evidence map›Paper›PMID 32889558›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020

Partial meniscectomy does not affect the biomechanics of anterior cruciate ligament reconstructed knee with a lateral posterior meniscal root tear.

Xin Tang, Brandon Marshall, Joon Ho Wang, Junjun Zhu, Jian Li, Monica A Linde, Patrick Smolinski, Freddie H Fu

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Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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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

3 citing papers in PubMed.

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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

8 authors.

Xin TangDepartment of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, China.ORCID http://orcid.org/0000-0002-5027-1189
Brandon MarshallDepartment of Mechanical Engineering and Material Science Engineering, University of Pittsburgh, Pittsburgh, PA, USA.
Joon Ho WangDepartment of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Suite 1011, Pittsburgh, PA, 15213, USA.
Junjun ZhuDepartment of Mechanical Engineering and Material Science Engineering, University of Pittsburgh, Pittsburgh, PA, USA.
Jian LiDepartment of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, China.
Monica A LindeDepartment of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Suite 1011, Pittsburgh, PA, 15213, USA.
Patrick SmolinskiDepartment of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Suite 1011, Pittsburgh, PA, 15213, USA.
Freddie H FuDepartment of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Suite 1011, Pittsburgh, PA, 15213, USA. ffu@upmc.edu.ORCID http://orcid.org/0000-0001-7821-4269

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to determine the effects of a lateral meniscus posterior root tear, partial meniscectomy, and total meniscectomy on knee biomechanics in the setting of anterior cruciate ligament (ACL) reconstruction.

methodsThirteen fresh-frozen cadaver knees were tested with a robotic testing system under an 89.0-N anterior tibial load at full extension (FE), 15°, 30°, 60° and 90° of knee flexion and a simulated pivot-shift loading (7.0 Nm valgus and 5.0 Nm internal tibial rotation) at FE, 15° and 30° of knee flexion. Anterior tibial translation (ATT) and the in-situ force of ACL graft under the different loadings were measured in four knee states: (1) ACL reconstruction with intact lateral meniscus (Intact meniscus), (2) ACL reconstruction with lateral meniscal posterior root tear (Root tear), (3) ACL reconstruction with lateral posterior partial meniscectomy (Partial meniscectomy) and (4) ACL reconstruction with total lateral meniscectomy (Total meniscectomy).

resultsUnder anterior tibial loading, compared with an intact meniscus, root tear significantly increased ATT at 15° and 30° of knee flexion (p < 0.05) and partial meniscectomy had almost same increased ATT as with root tear at any knee flexion between FE and 90°. Under simulated pivot-shift loading, total meniscectomy increased ATT compared with intact meniscus, root tear, partial meniscectomy at FE (p < 0.05).

conclusionUnder anterior tibial and simulated pivot-shift loading, partial meniscectomy has no significant effect on the stability of ACL-reconstructed knee with lateral meniscal posterior root tear, while total meniscectomy increased laxity at less than 30° of knee flexion. Clinically, in cases of irreparable meniscal root tears or persistent pain a partial meniscectomy can be considered in the setting of ACL reconstruction.

Indexed as

AdultAnterior Cruciate LigamentAnterior Cruciate Ligament InjuriesAnterior Cruciate Ligament ReconstructionBiomechanical PhenomenaCadaverFemaleHumansJoint InstabilityKnee JointMaleMeniscectomyMenisci, TibialMiddle AgedRotationRuptureAnterior cruciate ligament (ACL)Anterior tibial translation (ATT)MeniscectomyPivot shift

Identifiers

PMID32889558

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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.