Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
106
pubmed:dateCreated
1975-7-18
pubmed:abstractText
A technique for measuring the gaseous environment during the reconstitution of a large bone defect is described. Extensive testing of this system over the past 10 years has demonstrated its validity in measuring the average extracellular tissue pO-2 and pCO-2. Histology of the tissue surrounding the tonometer was obtained and correlated with the gaseous measurements. New bone formation in the healing segmental bone defects has been shown to take place under hypoxic conditions. The oxygen consumption of the surrounding tissue was determined and correlated with the histology and tissue gas measurements. It was demonstrated that the oxygen consumption was not elevated during the period of new bone formation, reflecting a state of anaerobic metabolism. The hypoxic conditions persist until the vascularity increases to match the cellularity. Thephysiological role of oxygen in osseous repair is presented. The present technique as well as the previously published microelectrode technique have demonstrated bone formation in vivo can take place under hypoxic conditions but the mechanism is not known and requires further investigation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0009-921X
pubmed:author
pubmed:issnType
Print
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
357-65
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Tissue gas tensions and oxygen consumption in healing bone defects.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.