Linked Life Data

10909011

Source:http://linkedlifedata.com/resource/pubmed/id/10909011

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2000-12-14
pubmed:abstractText
Bioactive glass S53P4 (BG) is an osteoconductive allograft material. Since 1990, BG has been used in the obliteration of frontal sinuses in more than 30 consecutive patients. The patients have been monitored regularly with clinical examinations, computer tomography (CT) scans, laboratory tests and, in a few cases, biopsies have also been obtained. The material has been well tolerated and no loss of volume of obliteration material has been seen in the obliterated sinuses. However, in repeated CT monitoring and with Region of Interest (ROI) analysis, a decrease in the density of the obliteration material inside the frontal sinuses has been seen. In the present study, the clinical conditions after an obliteration operation were simulated and the behaviour of the BG in the obliterated area was observed. The aim was to study whether it is possible indirectly to estimate the resorption of a massive amount of BG with ROI analysis for monitoring the clinical success of the treatment. Thus two sizes of granules (0.63-0.8 mm and 0.8-1.0 mm) in eight separate BG amounts, weight 25 g, were tested in simulated body fluid (SBF) in standard conditions. The dissolution of silicon (Si) and phosphate (P) was detected with direct plasma atom emission spectroscopy (DCP-AES) monthly up to 6 months. The BG amounts were scanned with CT and the slices analysed using the ROI technique at 1, 3 and 6 months. The cumulative loss of Si and P in SBF was significant during the study (p < 0.0001) and it was stronger with smaller than with larger granules (p < 0.0001). This was shown correspondingly by the decrease of Hounsfield units (p < 0.0001) in ROI analysis. The method seems reliably to reveal the resorption of BG for clinical purposes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0365-5237
pubmed:author
pubmed:issnType
Print
pubmed:volume
543
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
167-9
pubmed:dateRevised
2008-2-13
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Experimental follow-up model for clinical frontal sinus obliteration with bioactive glass (S53P4).
pubmed:affiliation
Department of Otorhinolaryngology-Head and Neck Surgery, Turku University Central Hospital, Finland.
pubmed:publicationType
Journal Article