Evidence map›Paper›PMID 28401277›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2018

Stress distribution is deviated around the aperture of the femoral tunnel in the anatomic anterior cruciate ligament reconstruction.

Yuichi Hoshino, Ryosuke Kuroda, Yuichiro Nishizawa, Naoki Nakano, Kanto Nagai, Daisuke Araki, Shinya Oka, Shogo Kawaguchi, Kouki Nagamune, Masahiro Kurosaka

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Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
–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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Gradual stabilization and narrowing of bone tunnels following primary anterior cruciate ligament reconstruction.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
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  16. Gender difference exists in sagittal curvature of the distal femoral condyle morphology for osteoarthritic population.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Article
  17. Femoral trochlear morphology is associated with anterior cruciate ligament injury in skeletally immature patients.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
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  18. Article
  19. Stiffness and shape of the ACL graft affects tunnel enlargement and graft wear.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    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

10 authors.

Yuichi HoshinoDepartment of Orthopaedic Surgery, Kobe Kaisei Hospital, 11-15, Shinohara-Kitamachi, 3-chome, Nada-ku, Kobe, 657-0068, Japan. you.1.hoshino@gmail.com.ORCID http://orcid.org/0000-0001-6142-8973
Ryosuke KurodaDepartment of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan.
Yuichiro NishizawaDepartment of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan.
Naoki NakanoDepartment of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan.
Kanto NagaiDepartment of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan.
Daisuke ArakiDepartment of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan.
Shinya OkaDepartment of Orthopaedic Surgery, Kobe Kaisei Hospital, 11-15, Shinohara-Kitamachi, 3-chome, Nada-ku, Kobe, 657-0068, Japan.
Shogo KawaguchiDepartment of Human and Artificial Intelligent Systems, Graduate School of Engineering, University of Fukui, Fukui, Japan.
Kouki NagamuneDepartment of Human and Artificial Intelligent Systems, Graduate School of Engineering, University of Fukui, Fukui, Japan.
Masahiro KurosakaDepartment of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeFinal tunnel location in the anterior cruciate ligament (ACL) reconstruction is unpredictable due to tunnel widening and/or transposition. The mechanical stress around the tunnel aperture seems to be a major factor but is not fully investigated. The purpose of this study was to measure the stress from the ACL graft around the tunnel aperture when the ACL graft tension reaches its peak.

methodsSix cadaveric knees were used. Single-bundle ACL reconstruction was performed using a hamstrings graft. Both femoral and tibial tunnels were created at the centre of the original ACL footprint. A 7-mm-internal-diameter aluminium cylinder with pressure sensors was placed in the femoral tunnel. Hamstrings graft with a microtension sensor was inserted. After fixation, passive extension-flexion was performed while monitoring the tunnel aperture pressure and the graft tension simultaneously. The pressure on the femoral tunnel aperture when the ACL graft tension reach its peak was compared between four directions.

resultsThe ACL graft tension peaked (67 ± 49 N) at full extension (-5.8 ± 4.1°). Pressure at the femoral tunnel aperture was different between different directions (p < 0.01). Distal part had significantly larger pressure (1.7 ± 1.3 MPa) than the other directions (p < 0.01). Second largest pressure was carried in the anterior part (0.6 ± 0.5 MPa), followed by proximal and posterior parts (0.4 ± 0.3, 0.2 ± 0.2 MPa respectively).

conclusionThe stress distribution at the femoral tunnel aperture is not equal in different directions, while the distal part dominantly bears the stress from the ACL graft. Surgeons should pay close attention to the distal edge of the femoral tunnel which should be inside the anatomic ACL footprint eventually.

Indexed as

Anterior Cruciate Ligament ReconstructionStress, MechanicalAgedAged, 80 and overBiomechanical PhenomenaFemaleFemurHamstring MusclesHumansKnee JointMaleAnatomic ACL reconstructionAnterior cruciate ligamentFemoral tunnelGraft tensionHamstrings graftStress distribution

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Registered trials

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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.