Damak yarýðý hastalarýnda fossa navicularis görülme sýklýðýnýn konik ýþýnlý bilgisayarlý tomografi ile deðerlendirilmesi

GÝRÝÞ ve AMAÇ: Fossa navicularis, radyografik olarak klivusun inferior tarafýnda bir kemik kavitesi þeklinde gözlenen anatomik bir varyasyondur. Daha önceki çalýþmalarda fossa navicularisin görülme sýklýðýnýn ender olduðu ortaya konmuþ olsa da damak yarýðý olan hastalardaki görülme sýklýðý ile ilgili daha önce yapýlmýþ bir çalýþma bulunmamaktadýr. Bu çalýþmada amaç, damak yarýðý olan hastalarda fossa navicularis görülme sýklýðýnýn konik ýþýnlý bilgisayarlý tomografi (KIBT) ile incelenmesidir.
YÖNTEM ve GEREÇLER: Herhangi bir sendromu olmayan ve damak yarýðý bulunan 45 hastaya ait KIBT görüntüleri bu çalýþmaya dahil edilmiþtir. KIBT görüntüleri üzerinde sagital düzlemde fossa navicularis varlýðý belirlenmiþtir. Ayrýca bu hastalara ait yaþ ve cinsiyet bilgileri kaydedilmiþtir.
BULGULAR: Çalýþmaya dahil edilen 45 hastanýn 20’si (44.4%) kadýn, 25’i (55.6%) erkektir. Yaþlarý 10 - <40 arasýnda deðiþen hastalarýn ortalama yaþý 18.5±7.6 olarak bulunmuþtur. Hastalarýn 13’ünde (28.8%) fossa navicularis varlýðý belirlenmiþtir. Fossa navicularis gözlenen hastalardan 4’ü (8.9%) kadýn iken, 9’u erkektir (20%). Yaþlarý 10-33 arasýnda deðiþen bu hastalarda ortalama yaþ 22.4±8.2 olarak bulunmuþtur.
TARTIÞMA ve SONUÇ: Damak yarýðý olan hastalarda fossa navicularis görülme sýklýðý, damak yarýðý bulunmayan hastalar üzerinde yapýlan daha önceki çalýþmalarda rapor edildiðinden daha fazla bulunmuþtur.

Prevalence of fossa navicularis among cleft palate patients detected by cone beam computed tomography

INTRODUCTION: Fossa navicularis is an anatomic variation, radiographically demonstrating as a bony, notch-like dehiscence on the inferior aspect of the clivus. Even though, the prevalence of fossa navicularis was reported to be rare, there are no previous studies reporting the prevalence of fossa navicularis among cleft palate patients. The objective of this study is to determine the prevalence of fossa navicularis among cleft palate patients using cone beam computed tomography (CBCT).
METHODS: The study group consisted of nonsyndromic 45 cleft patients having a CBCT scan. On CBCT images, the presence of fossa navicularis was detected on sagittal plane. Age and gender of the patients were also recorded.
RESULTS: Among 45 patients, 20 (44.4%) were female, whereas 25 (55.6%) were male. Mean age of the patients, with an age range of 10 - <40, was found as 18.5±7.6. Fossa navicularis was identified in 13 cleft patients (28.8%). Among these patients, 4 were female (8.9%), whereas 9 were male (20%), and their age ranged between 10 and 33 (mean age: 22.4±8.2).
DISCUSSION AND CONCLUSION: The prevalence of fossa navicularis in cleft palate patients was found to be higher than previously reported in noncleft patients.