scholarly journals Effects of repeated eccentric contractions with different loads on blood circulation and collagen fiber orientation in the human Achilles tendon

2018 ◽  
Vol 7 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Tomonobu Ishigaki ◽  
Toshihiro Ikebukuro ◽  
Keitaro Kubo
Keyword(s):  
Achilles Tendon ◽  
Fiber Orientation ◽  
Blood Circulation ◽  
Collagen Fiber ◽  
Eccentric Contractions ◽  
Collagen Fiber Orientation

A Review of the Collagen Orientation in the Articular Cartilage

Cartilage ◽  
2021 ◽  
pp. 194760352098877
Author(s):  
Roy D. Bloebaum ◽  
Andrew S. Wilson ◽  
William N. Martin
Keyword(s):  
Surface Layer ◽  
Articular Cartilage ◽  
Fiber Orientation ◽  
Collagen Fiber ◽  
Articular Surface ◽  
Imaging Techniques ◽  
Collagen Fibers ◽  
Deep Zone ◽  
Collagen Fiber Orientation ◽  
Critical Point Drying

Objective There has been a debate as to the alignment of the collagen fibers. Using a hand lens, Sir William Hunter demonstrated that the collagen fibers ran perpendicular and later aspects were supported by Benninghoff. Despite these 2 historical studies, modern technology has conflicting data on the collagen alignment. Design Ten mature New Zealand rabbits were used to obtain 40 condyle specimens. The specimens were passed through ascending grades of alcohol, subjected to critical point drying (CPD), and viewed in the scanning electron microscope. Specimens revealed splits from the dehydration process. When observing the fibers exposed within the opening of the splits, parallel fibers were observed to run in a radial direction, normal to the surface of the articular cartilage, radiating from the deep zone and arcading as they approach the surface layer. After these observations, the same samples were mechanically fractured and damaged by scalpel. Results The splits in the articular surface created deep fissures, exposing parallel bundles of collagen fibers, radiating from the deep zone and arcading as they approach the surface layer. On higher magnification, individual fibers were observed to run parallel to one another, traversing radially toward the surface of the articular cartilage and arcading. Mechanical fracturing and scalpel damage induced on the same specimens with the splits showed randomly oriented fibers. Conclusion Collagen fiber orientation corroborates aspects of Hunter’s findings and compliments Benninghoff. Investigators must be aware of the limits of their processing and imaging techniques in order to interpret collagen fiber orientation in cartilage.

scholarly journals Collagen I membranes for tendon repair: Effect of collagen fiber orientation on cell behavior

2009 ◽  
Vol 27 (6) ◽  
pp. 826-832 ◽  
Author(s):  
Antonio Gigante ◽  
Eugenio Cesari ◽  
Alberto Busilacchi ◽  
Sandra Manzotti ◽  
Kyriaki Kyriakidou ◽  
...  
Keyword(s):  
Fiber Orientation ◽  
Collagen Fiber ◽  
Tendon Repair ◽  
Collagen I ◽  
Cell Behavior ◽  
Collagen Fiber Orientation

scholarly journals How the nanoscale composition and collagen fiber orientation affect osteonal mechanical competence

Bone Reports ◽  
2020 ◽  
Vol 13 ◽  
pp. 100673
Author(s):  
Kilian Stockhausen ◽  
Felix Schmidt ◽  
Mahan Qwamizadeh ◽  
Eva Wölfel ◽  
Haniyeh Hemmatian ◽  
...  
Keyword(s):  
Fiber Orientation ◽  
Collagen Fiber ◽  
Collagen Fiber Orientation

Collagen fiber orientation at the tendon to bone insertion and its influence on stress concentrations

2006 ◽  
Vol 39 (10) ◽  
pp. 1842-1851 ◽  
Author(s):  
Stavros Thomopoulos ◽  
Juan P. Marquez ◽  
Bradley Weinberger ◽  
Victor Birman ◽  
Guy M. Genin
Keyword(s):  
Fiber Orientation ◽  
Collagen Fiber ◽  
Stress Concentrations ◽  
Collagen Fiber Orientation

scholarly journals Quantitative Mapping of Collagen Fiber Orientation in Non-glaucoma and Glaucoma Posterior Human Sclerae

2012 ◽  
Vol 53 (9) ◽  
pp. 5258 ◽  
Author(s):  
Jacek K. Pijanka ◽  
Baptiste Coudrillier ◽  
Kimberly Ziegler ◽  
Thomas Sorensen ◽  
Keith M. Meek ◽  
...  
Keyword(s):  
Fiber Orientation ◽  
Collagen Fiber ◽  
Collagen Fiber Orientation ◽  
Quantitative Mapping

Anisotropy of collagen fiber orientation in sheep tendon by 1H double-quantum-filtered NMR signals

2003 ◽  
Vol 162 (1) ◽  
pp. 166-175 ◽  
Author(s):  
R. Fechete ◽  
D.E. Demco ◽  
B. Blümich ◽  
U. Eliav ◽  
G. Navon
Keyword(s):  
Fiber Orientation ◽  
Collagen Fiber ◽  
Double Quantum ◽  
Collagen Fiber Orientation ◽  
Nmr Signals
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