Use of bone for obliteration of the nasofrontal duct with the osteoplastic flap: a cat model.
Owens M., Klotch DW.
Animal Study, published in Laryngoscope (1993) — summary generated from the PubMed abstract.
Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.
- Level A · Stronger Clinical Evidence
- Level B · Emerging clinical evidence with positive signals
- Level C · Early human research exploring benefits
- Level D · Scientific groundwork from lab and animal studies
- Emerging · Emerging topic under active research
This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.
- Study type
- Animal Study
- Journal
- Laryngoscope (1993)
- Country
- United States
- Reported sample size
- —
- Source database
- PubMed
- PMID
- 8361291
- DOI
- 10.1288/00005537-199308000-00009
Abstract (original English)
The management of the frontal sinus remains controversial for traumatic and inflammatory disease. The osteoplastic flap with fat obliteration has become the treatment standard, although late failures with infection and mucocele formation may arise. Theories for mucocele formation include regrowth of residual mucosa from the sinus and ingrowth of mucosa from a nonobliterated nasofrontal duct. A study to evaluate the means of nasofrontal duct obliteration was developed. Three cat groups were evaluated at 1, 2, and 3 months. Group 1 had the duct and sinus obliterated with fat. Group 2 had the duct obliterated with bone and the sinus with fat. Group 3 had only the duct obliterated with bone. There was no mucosal ingrowth in any of the sinuses for the intervals studied. In group 1, fat volume was seen to decrease over time with replacement by fibrous tissue within the duct. Groups 2 and 3 developed progressive obliteration of the duct with new bone formation. One may infer that fat obliteration alone does not provide a predictable stable situation as fat atrophies within the duct and may allow mucosal ingrowth. Bone obliteration was shown to be progressive within the duct from osteogenesis. This is the first experimental model to correlate clinical observations of the use of bone for sinus obliteration. This study concluded that bone obliterates the nasofrontal duct better than the
What this study does not prove
- • This study does not prove SVF is an approved treatment or a replacement for standard care.
- • This is preclinical work; animal or laboratory results cannot be applied to humans.
Evidence level
Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.
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