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. 1999 Nov;83(11):1300–1301. doi: 10.1136/bjo.83.11.1300

Rhinostomies: an open and shut case?

C McLean 1, I Cree 1, G Rose 1
PMCID: PMC1722857  PMID: 10535862

Abstract

AIMS—To analyse bone fragments from rhinostomies of patients undergoing revisional dacryocystorhinostomy, looking for evidence of new bone formation.
METHODS—14 consecutive patients undergoing secondary lacrimal surgery were included in this study. In each case the existing rhinostomy was enlarged with bone punches, care being taken to use the punches with the jaws cutting perpendicularly to the edge of the rhinostomy, to allow accurate orientation of the specimens. The fragments were examined histologically for evidence of new bone formation.
RESULTS—Histological sections showed fragments of bone with variable fibrosis at the edge of the rhinostomy. There was evidence of only very little new bone formation.
CONCLUSION—This study has clearly shown that, at the edge of a rhinostomy, healing is predominantly by fibrosis and there is only very limited new bone formation.



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Figure 1  .

Figure 1  

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Diagram illustrating the removal of a bullet-shaped piece of bone from a rhinostomy and a close up view of the bone illustrating the small area of new bone formation. The orientation of the bone fragments was kept constant, relative to the edge of the rhinostomy, by engaging the jaws of the bone punch in a line perpendicular to the rhinostomy.

Figure 2  .

Figure 2  

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Histological section of a bone fragment showing normal nasal bone (B), a thin area of new bone formation (N), and a large area of surrounding fibrosis (F). Haematoxylin and eosin staining (×200).

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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