epiphyseal bone
Recently Published Documents


TOTAL DOCUMENTS

26
(FIVE YEARS 8)

H-INDEX

7
(FIVE YEARS 1)

Author(s):  
A.K. Hahn ◽  
C.W. Wallace ◽  
H.D. Welhaven ◽  
E. Brooks ◽  
M. McAlpine ◽  
...  

2021 ◽  
Vol 22 (2) ◽  
pp. 900
Author(s):  
Ángela Fernández-Iglesias ◽  
Rocío Fuente ◽  
Helena Gil-Peña ◽  
Laura Alonso-Durán ◽  
Fernando Santos ◽  
...  

The formation of the epiphyseal bone plate, the flat bony structure that provides strength and firmness to the growth plate cartilage, was studied in the present study by using light, confocal, and scanning electron microscopy. Results obtained evidenced that this bone tissue is generated by the replacement of the lower portion of the epiphyseal cartilage. However, this process differs considerably from the usual bone tissue formation through endochondral ossification. Osteoblasts deposit bone matrix on remnants of mineralized cartilage matrix that serve as a scaffold, but also on non-mineralized cartilage surfaces and as well as within the perivascular space. These processes occur simultaneously at sites located close to each other, so that, a core of the sheet of bone is established very quickly. Subsequently, thickening and reshaping occurs by appositional growth to generate a dense parallel-fibered bone structurally intermediate between woven and lamellar bone. All these processes occur in close relationship with a cartilage but most of the bone tissue is generated in a manner that may be considered as intramembranous-like. Overall, the findings here reported provide for the first time an accurate description of the tissues and events involved in the formation of the epiphyseal bone plate and gives insight into the complex cellular events underlying bone formation at different sites on the skeleton.


2021 ◽  
Vol 271 ◽  
pp. 03039
Author(s):  
Meibai Tang ◽  
Richeng Zhi ◽  
Changyi Sun ◽  
Xiaohua Wang ◽  
Chenglin Liu

The knee joint is one of the tissues that often appear diseased, and the pathogenesis owing to its structure. Therefore, the micro-structure of the knee joint was studied by synchrotron radiation phasecontrast CT imaging (SRPCI-CT). The contrast and the sharpness of the reconstructed slice were calculated and analysed. From these results, the layer structure of the joint tissue can be seen. The cartilage layer (including the meniscus) is about 1.44 mm, and the epiphyseal layer is about 2.25 mm, which conforms to the actual situation of rat knees. From the 3D images, the structure of the meniscus and the epiphyseal bone can be observed. The epiphyseal bone line is also particularly obvious. Simultaneously, the epiphyseal bone also has a mesh structure, which has the characteristics of both cartilage and tibia. Further research on the tibia can determine that the trabecular bone line is about 130 microns. Finally, the bone volume fraction (BVF) of the joint, the data also reflect the existence of a layer structure, and its scale distribution is consistent with the results of sharpness and contrast analysis. The SRPCI-CT can play an important role in the study micro-structure of joints.


Bone Reports ◽  
2020 ◽  
Vol 13 ◽  
pp. 100375
Author(s):  
Yu Ning Chim ◽  
Simon Kwoon Ho Chow ◽  
Sze Yi Mak ◽  
Michelle Meng Chen Li ◽  
Bob Ching Hang Yung ◽  
...  

2018 ◽  
Vol 55 ◽  
pp. 46-52 ◽  
Author(s):  
Elham Abedin ◽  
Roya Lari ◽  
Nasser Mahdavi Shahri ◽  
Masoud Fereidoni

Sign in / Sign up

Export Citation Format

Share Document