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Minimally Invasive Technique for Repairing CSF Leaks Due to Defects of Posterior Table of Frontal Sinus.

ABSTRACT: Objective Cerebrospinal fluid (CSF) leaks from the frontoethmoid and sphenoid region can be easily dealt with endoscopic approaches, but CSF rhinorrhea due to frontal sinus fractures are difficult to treat solely by the nasal endoscopic approach and may require external repair. The technique described targets defects of the posterior table of the frontal sinus where conventional osteoplastic approach of obliteration is usually done. This technique is minimally invasive and involves repair using an endoscope via a frontal trephine. Methods We have treated five cases of traumatic CSF rhinorrhea with this technique, and the mean follow-up is 1 year (range: 10-14 months). The frontal sinus is opened by making a small stab incision (frontal trephine), and the defect site is localized by visualization via endoscope through the trephine. The repair is then performed with fat, bone graft, and fibrin glue. Results Closure of the defect was achieved in a single stage in all the patients, and none of them had a recurrence of leak in the 1-year follow-up period. Conclusion This is a good technique for superiorly and laterally placed posterior table defects of the frontal sinus with minimal morbidity and excellent closure rates.

SUBMITTER: Bhavana K

PROVIDER: S-EPMC4078189 | biostudies-other | 2014 Jun

REPOSITORIES: biostudies-other

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Project description:ImportanceDespite common goals of frontal sinus fracture treatment (restoring forehead contour and creating a safe sinus), there remains significant variability in evaluation and treatment.ObjectiveTo describe our experience with a minimally disruptive treatment protocol for the treatment of frontal sinus fractures.Design, setting, and participantsAnalysis of prospectively collected data from 2010 through 2015 at a level 1 trauma center. All patients with frontal sinus fractures treated with our protocol from January 2010 to December 2015. Patients with poor follow-up and/or incomplete medical records were excluded from analysis.Main outcomes and measuresPresence of an aerated frontal sinus and aesthetically acceptable forehead contour. Secondary outcome measures were complications related to frontal sinus fractures.ResultsA total of 39 patients were treated under our minimally disruptive protocol, and 25 patients were included in the study; 18 (72%) were male and 7 (28%) were female. Their ages ranged from 6 to 62 years. After review, 22 patients had both clinical and radiographic follow-up. No patients underwent immediate frontal sinus repair. Five of 22 patients underwent surgery for indications other than their frontal sinus fracture: 1 of 5 patients underwent immediate surgical repair due to bilateral LeFort fractures, and 4 of 5 underwent delayed surgery due to nasal polyps (1 patient), scar revision (1 patient), and concomitant LeFort fractures (2 patients). Two of 22 patients (9%) underwent frontal sinus repair after outpatient surveillance due to persistent cerebrospinal fluid leak (1 patient) and orbital roof fracture (1 patient). The remaining 20 patients were treated nonoperatively, and 19 of 20 (95%) had spontaneous improvement in opacification and/or contour deformity. Twelve of 20 patients (60%) had improvement or resolution in both. One patient had ongoing partial opacification and deformity at the 3-month follow-up but was asymptomatic and had bony contour that was aesthetically acceptable to the patient. There were no complications. The median of all follow-up was 3 months.Conclusions and relevanceFrontal sinus fractures treated nonoperatively had a high rate of spontaneous ventilation and bony autoreduction with aesthetically acceptable frontal bone remodeling. There were no complications in the nonoperative group. The initial results of this study support further study of the safety and efficacy of a minimally disruptive protocol for frontal sinus fractures.Level of evidence4.

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Minimally Invasive Technique for Repairing CSF Leaks Due to Defects of Posterior Table of Frontal Sinus.

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