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ID 19510
Eprint ID
19510
FullText URL
68_563.pdf 3.08 MB
Title Alternative
Experimental studies on the changes of the bone to overweight
Author
Kobayashi, Kozaburo
Abstract
When overweight is added to normal bone a relation forms with its transformation. Therefore, the author made experiments on normal adult dogs by resecting parts of their radial bones and giving overweight to its ulna to see what attitude it took. 1) The main X-ray findings were the decrease of physiological curve of the bone and the spindle shaped periostal callus at the part getting the greatest overweight. 2) It was concluded from the distribution of stress and strain in the inner part that the part producing future dynamic callus was the same as the place receiving maximum stress before its thickening. Stress as well as production of callus seen in the compressed part of the concaved side was much greater than that of the retracted part of the convexed side. Stress appearing in the bone after its thickening was generally reduced comparing to its previous state and stability was formed. Comparing to normal bones decrease of the curve helped in reducing stress. 3) Changes seen in nutritional arteries by arteriography showed complicated distribution and fine shadows. Formation and dilation of new vessels were also seen histologically in dynamic callus and bone. 4) Histologically it was mainly the development of periostal callus. There was dilation of Haver's canal and its passage was irregular with its inner vessels dilated and showing hyperemia. Hyperemia, new development and intrusion of vessels were obvious also in the callus.
Published Date
1956-06-30
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume68
Issue
issue6
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
563
End Page
587
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/68/6/68_6_563/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma