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Histological characteristics of ligament healing after bio‐enhanced repair of the transected goat ACL

Overview of attention for article published in Journal of Experimental Orthopaedics, February 2015
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Title
Histological characteristics of ligament healing after bio‐enhanced repair of the transected goat ACL
Published in
Journal of Experimental Orthopaedics, February 2015
DOI 10.1186/s40634-015-0021-5
Pubmed ID
Authors

D Tan Nguyen, Sietske Dellbrügge, Paul P Tak, Savio L-Y Woo, Leendert Blankevoort, Niek C van Dijk

Abstract

Recently, healing of a ruptured anterior cruciate ligament (ACL) is reconsidered. In a previous study, we have shown that the transected ACL can heal after treatment with the triple X locking suture alone or combined with small intestine submucosa (SIS). The first research question of this study was whether the healing ACLs in both groups show histological characteristics that are typical for ligament healing. Secondly, did the combined treatment with SIS lead to improved histological healing, in terms of the morphology of the fibrous synovial layer, the extracellular matrix (ECM), collagen fiber orientation, cellularity, ratio of myofibroblasts, and collagen type 3 staining. The hypothesis was that SIS enhances the healing by the scaffolding effect, endogenous growth factors, and chemoattractants. In the Suture group, the left ACL was transected and sutured with the triple X locking suture repair technique. In the Suture-SIS group, the left ACL underwent the same procedure with the addition of SIS. The right ACL served as internal control. Standard histology and immunostaining of α-smooth muscle actin (SMA) and collagen type 3 were used. Microscopy showed that the fibrous synovial layer around the ACL was reestablished in both groups. The collagen fibers in the Suture-SIS group stained denser, were more compactly arranged, and the ECM contained fewer voids and fat vacuoles. Neovasculature running between the collagen fibers was observed in both experimental groups. Collagen type 3 stained less in the Suture-SIS group. The cellularity in the Suture group, Suture-SIS group and Control was 1265 ± 1034 per mm(2), 954 ± 378 per mm(2), 254 ± 92, respectively; 49%, 26% and 20% of the cells stain positive for α-SMA, respectively. The healing ACL in both treated groups showed histological characteristics which are comparable to the spontaneously healing medial collateral ligament and showed that the ACL has a similar intrinsic healing response. Though, no definitive conclusions on the beneficial effects of the SIS scaffold on the healing process can be made.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 38 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 1 3%
Unknown 37 97%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 6 16%
Student > Master 4 11%
Researcher 4 11%
Student > Ph. D. Student 3 8%
Other 2 5%
Other 6 16%
Unknown 13 34%
Readers by discipline Count As %
Medicine and Dentistry 11 29%
Nursing and Health Professions 3 8%
Unspecified 1 3%
Biochemistry, Genetics and Molecular Biology 1 3%
Agricultural and Biological Sciences 1 3%
Other 3 8%
Unknown 18 47%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 26 February 2016.
All research outputs
#20,311,744
of 22,852,911 outputs
Outputs from Journal of Experimental Orthopaedics
#300
of 327 outputs
Outputs of similar age
#215,750
of 255,897 outputs
Outputs of similar age from Journal of Experimental Orthopaedics
#2
of 4 outputs
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So far Altmetric has tracked 327 research outputs from this source. They receive a mean Attention Score of 4.3. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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