Preoperative imaging findings as predictors of postoperative inferior alveolar nerve injury following mandibular cyst surgery
| Autor: | Satoshi Yamaguchi, Reiko Hoshi, Akemi Tetsumura |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male medicine.medical_specialty Panoramic radiograph Mandibular Nerve Radiography Enucleation Mandibular canal Mandible Inferior alveolar nerve 03 medical and health sciences 0302 clinical medicine stomatognathic system Radiography Panoramic medicine Humans General Dentistry Dysesthesia Cysts business.industry 030206 dentistry Middle Aged Chin Mandibular cyst Surgery medicine.anatomical_structure 030220 oncology & carcinogenesis Preoperative Period Female Trigeminal Nerve Injuries medicine.symptom Tomography X-Ray Computed business |
| Zdroj: | Journal of Oral Science. 60:618-625 |
| ISSN: | 1880-4926 1343-4934 |
| DOI: | 10.2334/josnusd.17-0458 |
| Popis: | The purpose of the present study was to predict inferior alveolar nerve (IAN) exposure and associated neurosensory deficits after mandibular cyst surgery based on imaging findings. The study includes 193 sites in 184 consecutive patients who underwent enucleation of cystic lesions around a mandibular third molar (MM3) and extraction of the associated MM3. Absence/presence of white lines on panoramic radiographs (PR) and absence/presence of cortication surrounding the mandibular canal on computed tomography (CT) are evaluated as predictor variables. Outcome variables are operative IAN exposure and postoperative lower lip and/or chin dysesthesia. There is a significant correlation between interruption of white lines and loss of cortication. The predictor variables are statistically associated with IAN exposure and dysesthesia. Positive predictive values of CT findings (loss of cortication) for each outcome variable are slightly higher than those of PR findings (interruption of white lines). When considering the variables, type IV, with interruption of white lines and loss of cortication, shows a statistically significant difference compared to the other groups. White lines on PR images and cortication status of the mandibular canal on CT images predict operative IAN exposure and postoperative dysesthesia in mandibular cyst surgery. |
| Databáze: | OpenAIRE |
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