International Journal of Oral and Maxillofacial Surgery
Clinical PaperClinical PathologySurgical removal of keratocystic odontogenic tumours via a Le Fort I osteotomy approach: a retrospective study of the recurrence rate
Section snippets
Identification of the study population
A database search was done to find patients who had undergone Le Fort I osteotomy surgery and the surgical removal of cystic lesions over a 20-year period (1995–2015). The International Classification of Diseases, 10th revision (ICD-10) codes EEC.5 and EFA50 were used to identify subjects in the database. A review of the medical records was then performed to confirm the diagnosis. The inclusion criteria were (1) full documentation including surgical notes, (2) confirmed histopathological
Demographic data and clinical manifestations
Fifteen patients were identified in the records. Six patients were excluded from the study because they were followed up for too short a time. Thus, data were collected for nine patients: four female and five male, with a mean age of 37 years (range 16–64 years). Four of the KCOTs were located in the right maxillary sinus and five were located in the left maxillary sinus. The most common symptoms were intraoral discharge (n = 5) and pain (n = 3) (Table 1).
KCOT and treatment strategies
All patients underwent biopsy
Discussion
To achieve the total excision of a KCOT in the maxillary sinus and complete haemostasis, an extensive approach such as the Le Fort I osteotomy is necessary. In the present study, the KCOTs were located in the posterior maxilla and the maxillary sinus. A Le Fort I osteotomy was performed in all cases in order to gain good access to these lesions. This surgical approach was found to be beneficial, with a low recurrence rate in patients with unilocular tumours. A high recurrence rate was seen in
Funding
Linköping University Hospital. This study was supported by the Department of Oral and Maxillofacial Surgery, Linköping, Sweden.
Competing interests
No conflict of interest.
Ethical approval
The study was approved by the Regional Committee for Ethics in Linköping, Sweden (2015/82-31).
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