2008
DOI: 10.1590/s0100-39842008000300003
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Análise por tomografia computadorizada do teto etmoidal: importante área de risco em cirurgia endoscópica nasal

Abstract: OBJETIVO: Avaliar a profundidade das fossas olfatórias e a freqüência de assimetria na altura e na inclinação lateral do contorno do teto etmoidal. MATERIAIS E MÉTODOS: Estudo retrospectivo de 200 tomografias computadorizadas dos seios da face no plano coronal realizadas no período de agosto a dezembro de 2006. As profundidades das fossas olfatórias foram classificadas segundo Keros. O teto etmoidal foi avaliado quanto à simetria entre os lados. RESULTADOS: O tipo de Keros mais encontrado foi o tipo II (73,3%)… Show more

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Cited by 46 publications
(20 citation statements)
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“…Using the Keros classification, we obtained percentages that were relatively similar to the values in several previous studies. [21][22][23] A statistically significant difference was found between males and females in mean OF depth, similar to some previous studies. [6,9] Also, we did not find a significant difference in mean OF depth between the right and left sides.…”
Section: Discussionsupporting
confidence: 91%
“…Using the Keros classification, we obtained percentages that were relatively similar to the values in several previous studies. [21][22][23] A statistically significant difference was found between males and females in mean OF depth, similar to some previous studies. [6,9] Also, we did not find a significant difference in mean OF depth between the right and left sides.…”
Section: Discussionsupporting
confidence: 91%
“…Such variation may be either uni-or bilateral ( Figure 2B). Varied degrees of pneumatization of the concha may be observed, possibly causing middle meatus or fected (1,2) . Anatomical variations, in association with their inherent conditions, are added to such risks so the knowledge on these structures is critical for endoscopic surgeons as well as for radiologists involved in the preoperative evaluation, in order to avoid therapeutic failure and iatrogenic complications (2-5) .…”
Section: Variations Of the Middle Turbinatesmentioning
confidence: 99%
“…A higher incidence of ethmoidal roof perforation is reported in cases of asymmetry in the height of the lateral lamella. Lateralization and protrusion of the lateral lamella represent a major risk for perforation (9) .…”
Section: Editorialmentioning
confidence: 99%