Evidence map›Paper›PMID 26037545›Full record

Trial reportKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2017

Knee laxity modifications after ACL rupture and surgical intra- and extra-articular reconstructions: intra-operative measures in reconstructed and healthy knees.

Pierre Imbert, Claudio Belvedere, Alberto Leardini

Open access · hybridAbstract readClinical Trial
In one paragraph

Trial report in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
5.6field-weighted citation impact, top 4% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Step-by-step insight into gait analysis: A narrative review unlocking knee biomechanics.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026
    Review
  3. Article
  4. Review
  5. ACL Reconstruction with Augmentation: a Scoping Review.Current reviews in musculoskeletal medicine · 2019
    Article
  6. Article
  7. Article
  8. Article
  9. Current use of navigation system in ACL surgery: a historical review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016
    Review
  10. 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

3 authors at 2 institutions in 2 countries.

Pierre ImbertDepartment of Knee Surgery, Clinique Notre Dame De La Merci, 215, Avenue du Maréchal Lyautey, 83700, Saint Raphaël, France. imbertpierre@hotmail.com.
Claudio BelvedereMovement Analysis Laboratory, Istituto Ortopedico Rizzoli, Bologna, Italy.
Alberto LeardiniMovement Analysis Laboratory, Istituto Ortopedico Rizzoli, Bologna, Italy.
Istituto Ortopedico Rizzoli · ITNotre Dame of Dadiangas University · PH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeQuantifying the effects of anterior cruciate ligament (ACL) deficiency on knee joint laxity is fundamental for understanding the outcomes of its reconstruction techniques. The general aim of this study was to determine intra-operatively the main modifications in knee laxity before and after standard isolated intra-articular and additional extra-articular anterolateral reinforcement. Our main hypothesis was that laxity abnormalities, particularly axial rotation, can still result from these ACL reconstruction techniques.

methodsThirty-two patients with primary ACL deficiency were analysed by a navigation system immediately before and after each of the two reconstructions. Laxity measurements in terms of knee translations and rotations were taken during the anteroposterior drawer test, with internal-external rotation at 20° and 90° of flexion, and varus-valgus and pivot-shift tests. All these laxity measures were also taken originally from the contralateral healthy knee.

resultsWith respect to the contralateral healthy knee, in the ACL-deficient knee significantly increased laxity (expressed in %) was found in the medial compared with that of the lateral compartment, respectively, 115 and 68 % in the drawer test at 20° flexion, and 55 and 46 % at 90° flexion. In the medial compartment, a significant 35 % increment was also observed for the coupled tibial anteroposterior translation during axial knee rotation at 20° of flexion. After isolated intra-articular reconstruction, normal values of anteroposterior laxity were found restored in the pivot-shift and drawer tests in the lateral compartment, but not fully in the medial compartment. After the reinforcement, laxity in the medial compartment was also found restored in the axial rotation test at 20° flexion.

conclusionIn ACL reconstruction, with respect to the contralateral knee, intra-articular plus additional anterolateral reinforcement procedures do not restore normal joint laxity. This combined procedure over-constrained the lateral compartment, while excessive laxity still persists at the medial one. LEVEL OF EVIDENCE: III.

Indexed as

Anterior Cruciate Ligament InjuriesAnterior Cruciate Ligament ReconstructionBiomechanical PhenomenaCase-Control StudiesHumansIntraoperative PeriodJoint InstabilityRange of Motion, ArticularRotationTreatment OutcomeACL reconstructionAnterolateral ligamentAnterolateral reinforcementContralateral healthy kneeExtra-articular procedureKnee compartmentsKnee kinematicsLaxity measurements

Identifiers

PMID26037545
PMCPMC5570784
OpenAlexW576040501

What OpenQuestion holds

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LicenceCC BY
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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.