Evidence map›Paper›PMID 32064294›Full record

ArticleOrthopaedic journal of sports medicine2020

Treatment of Acute Proximal Anterior Cruciate Ligament Tears-Part 2: The Role of Internal Bracing on Gap Formation and Stabilization of Repair Techniques.

Samuel Bachmaier, Gregory S DiFelice, Bertrand Sonnery-Cottet, Wiemi A Douoguih, Patrick A Smith, Lee J Pace, Daniel Ritter, Coen A Wijdicks

Open access · goldAbstract read
In one paragraph

Article in Orthopaedic journal of sports medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 3% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

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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 at 5 institutions in 3 countries.

Samuel BachmaierDepartment of Orthopedic Research, Arthrex, Munich, Germany.
Gregory S DiFeliceHospital for Special Surgery, New York, New York, USA.
Bertrand Sonnery-CottetCentre Orthopedique Santy, Lyon, France.
Wiemi A DouoguihMedStar Washington Hospital Center, Washington, District of Columbia, USA.
Patrick A SmithUniversity of Missouri, Columbia, Missouri, USA.
Lee J PaceConnecticut Children's Specialty Group, Hartford, Connecticut, USA.
Daniel RitterDepartment of Orthopedic Research, Arthrex, Munich, Germany.
Coen A WijdicksDepartment of Orthopedic Research, Arthrex, Munich, Germany.
Arthrex (Germany) · DECentre Orthopédique Santy · FRHospital for Special Surgery · USMedStar Washington Hospital Center · USUniversity of Missouri · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe latest biomechanical studies on some form of internal bracing have shown improved stabilization for anterior cruciate ligament (ACL) repair, but gap formation and load-sharing function have not yet been reported. HYPOTHESIS: Internal bracing of an adjustable ACL repair construct provides improved stabilization with reduced gap formation and higher residual loading on the ACL. STUDY

designControlled laboratory study.

methodsInternally braced ACL repair constructs with single- and double-cinch loop (CL) cortical buttons, a knotless suture anchor, and a single-CL cortical button with adjustable loop fixation (CLS-ALD) were tested (n = 20 each) in a porcine model at 4 different loads (n = 5 each) over 4000 cycles at 0.75 Hz (n = 80 total). The CLS-ALD technique allowed for additional preconditioning (10 cycles at 0.5 Hz). Test results of the isolated internal brace groups served as a baseline for comparison. Lastly, specimens were pulled to failure (50 mm/min) with a cut internal brace. Final loading and gap formation on the ACL repair construct as well as ultimate strength were analyzed.

resultsA statistical significance for peak loads over peak elongation was found between the CLS-ALD and all other reinforced groups (analysis of covariance,

conclusionInternal bracing had a crucial role in improving the stabilization potential of ACL repair at loads occurring during normal daily activity. The added strength of the internal brace allowed for reducing peak loads on the ACL repair construct as well as restricting gap formation to below 3 mm at loads up to 350 N. CLINICAL RELEVANCE: Improvements in the mechanical characteristics of current ACL repair techniques that enable reduced gap formation and allow for early range of motion and accelerated rehabilitation may strengthen the self-healing response with the formation of stable scar tissue.

Indexed as

ACL repairadjustable loopbiomechanical testinggap formationsuspensory fixation

Identifiers

PMID32064294
PMCPMC6987493
OpenAlexW3003692168

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.