Light and electron microscopic study of the medial collateral ligament epiligament tissue in human knees

Alexandar Iliev; Boycho Landzhov; Georgi Kotov; Georgi P Georgiev; Plamen Kinov; Svetoslav Slavchev

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Light and electron microscopic study of the medial collateral ligament epiligament tissue in human knees

Light and electron microscopic study of the medial collateral ligament epiligament tissue in human knees

作者：

Alexandar Iliev Boycho Landzhov Georgi Kotov Georgi P Georgiev Plamen Kinov Svetoslav Slavchev

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KNEE

Epiligament

KNEE

medial

collateral

LIGAMENT

ELECTRON

MICROSCOPY

Humans

MICROSCOPY

PHOTOMICROGRAPHY

摘要：

AIM To examine the normal morphology of the epiligament tissue of the knee medial collateral ligament(MCL)in humans.METHODS Several samples of the mid-substance of the MCL of the knee joint from 7 fresh human cadavers(3 females and 4 males)were taken.Examination of the epiligament tissue was conducted by light microscopy and photomicrography on semi-thin sections of formalin fixed paraffin-embedded blocks that were routinely stained with haematoxylin and eosin,Mallory stain and Van Gieson’s stain.Electron microscopy of the epiligament tissue was performed on ultra-thin sections incubated in 1%osmium tetroxide and contrasted with 2.5%uranyl acetate,lead nitrate,and sodium citrate.RESULTS The current light microscopic study demonstrated that the epiligament of the MCL consisted of?broblasts,?brocytes,adipocytes,neuro-vascular bundles and numerous multidirectional collagen fibers.In contrast,the ligament body was poorly vascularised,composed of hypo-cellular fascicles which were formed of longitudinal groups of collagen fibers.Moreover,most of the vessels of the epiligament-ligament complex were situated in the epiligament tissue.The electron microscopic study revealed fibroblasts with various shapes in the epiligament substance.All of them had the ultrastructural characteristics of active cells with large nuclei,well developed rough endoplasmic reticulum,multiple ribosomes,poorly developed Golgi apparatus,elliptical mitochondria and oval lysosomes.The electron microscopy also confirmed the presence of adipocytes,mast cells,myelinated and unmyelinated nerve fibers and chaotically oriented collagen fibers.CONCLUSION Significant differences exist between the normal structure of the ligament and the epiligament whose morphology and function is to be studied further.

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篇名	Light and electron microscopic study of the medial collateral ligament epiligament tissue in human knees
来源期刊	世界骨科杂志	学科	医学
关键词	KNEE Epiligament KNEE medial collateral LIGAMENT ELECTRON MICROSCOPY Humans MICROSCOPY PHOTOMICROGRAPHY
年，卷（期）	2017,（5）	所属期刊栏目
研究方向		页码范围	372-378
页数	7页	分类号	R
字数		语种
DOI