Evidence map›Paper›PMID 31690993›Full record

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

Notchplasty alters knee biomechanics after anatomic ACL reconstruction.

Yongtao Mao, Brandon Marshall, Taylor Price, Monica Linde, Patrick Smolinski, Freddie H Fu, Carola F van Eck

Abstract read
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In one paragraph

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 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

14 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
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  5. Review
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  9. Notchplasty is associated with decreased risk of anterior cruciate ligament graft revision.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2023
    Article
  10. Article
  11. Article
  12. The risk of graft impingement still exists in modern ACL surgery and correlates with degenerative MRI signal changes.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Article
  13. Suture tape augmentation improves laxity of MCL repair in the ACL reconstructed knee.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Article
  14. 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 1 institution in 1 country.

Yongtao MaoOrthopaedic Engineering and Sports Medicine Laboratory, University of Pittsburgh, Pittsburgh, USA.
Brandon MarshallOrthopaedic Engineering and Sports Medicine Laboratory, University of Pittsburgh, Pittsburgh, USA.
Taylor PriceOrthopaedic Engineering and Sports Medicine Laboratory, University of Pittsburgh, Pittsburgh, USA.
Monica LindeOrthopaedic Engineering and Sports Medicine Laboratory, University of Pittsburgh, Pittsburgh, USA.
Patrick SmolinskiOrthopaedic Engineering and Sports Medicine Laboratory, University of Pittsburgh, Pittsburgh, USA.
Freddie H FuOrthopaedic Engineering and Sports Medicine Laboratory, University of Pittsburgh, Pittsburgh, USA.
Carola F van EckOrthopaedic Engineering and Sports Medicine Laboratory, University of Pittsburgh, Pittsburgh, USA. carola_francisca@hotmail.com.ORCID http://orcid.org/0000-0002-6657-0001
University of Pittsburgh · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aims of this study were (1) to study the biomechanics of single-bundle anatomic ACL reconstructed knees with and without notchplasty using a robotic testing system and (2) to determine if there would be a difference between performing a small or large notchplasty.

methodsFifteen fresh-frozen specimens were used in this study. The ACL reconstruction (ACL-R) was performed using an anatomic single-bundle technique with the 8 mm soft tissue graft fixed at 30° with suspensory fixation on the femoral side and a screw and washer on the tibial side. The notchplasty was then created with a burr. The following knee states were compared: (1) ACL-R, (2) ACL-R with a small (3 mm) notchplasty, and (3) ACL-R with a large (6 mm) notchplasty. Four loading conditions were applied: (1) an anterior drawer with an 89 N anterior tibial load, (2) simulated pivot-shift loading, (3) a 5 Nm internal rotational moment, and (4) a 5 Nm external rotational moment.

resultsUnder anterior tibial loading, anterior tibial translation increased, and graft force decreased significantly after ACL-R + 3 mm notchplasty and ACLR + 6 mm notchplasty compared to ACL-R alone at FE, 15° and 30° of knee flexion. There were no changes in either anterior tibial translation or graft force under simulated pivot-shift loading, internal rotational moment, or external rotational moment.

conclusionWhen added to anatomic ACL reconstruction, notchplasty increased anterior tibial translation and decreased graft forces during low knee flexion angles. There was no difference between a small and large notchplasty. The findings of this study are clinically relevant as the purpose of anatomic ACL reconstruction is to restore normal knee laxity, and while notchplasty may be helpful in avoiding graft impingement and improving visualization, removing even 3 mm of bone leads to biomechanical changes.

Indexed as

Anterior Cruciate LigamentAnterior Cruciate Ligament InjuriesAnterior Cruciate Ligament ReconstructionBiomechanical PhenomenaBone ScrewsCadaverFemurHumansJoint InstabilityKnee JointMiddle AgedTibiaACLAnatomicBiomechanicsKneeNotchplastyRobotic

Identifiers

PMID31690993
OpenAlexW2987838060

What OpenQuestion holds

Textmetadata
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.