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  • Title: Elimination of temporal bone cerebrospinal fluid otorrhea using hydroxyapatite cement.
    Author: Kveton JF, Goravalingappa R.
    Journal: Laryngoscope; 2000 Oct; 110(10 Pt 1):1655-9. PubMed ID: 11037820.
    Abstract:
    OBJECTIVE: This report introduces a new method to control cerebrospinal fluid (CSF) otorrhea using hydroxyapatite cement (HAC) via a transmastoid approach. This technique eliminates the need for a transmastoid or middle cranial fossa approach with soft tissue repair and prolonged hospitalization caused by lumbar drainage. STUDY DESIGN: Retrospective review. METHODS: Thirteen cases of transmastoid repairs of CSF otorrhea using HAC from August 1996 to February 1999 were reviewed. RESULTS: The CSF leak was controlled in every patient using HAC through a transmastoid approach. The reconstruction involved eight tegmen defects, three posterior fossa dural plate defects, and two congenital inner ear fistula secondary to Mondini malformation. Postoperative wound infection in one patient was the only complication that occurred. The average hospital stay was 48 hours. Follow-up ranged from 12 to 44 months with no recurrence of CSF otorrhea. CONCLUSION: The successful use of HAC to control CSF otorrhea through a transmastoid approach reduces patient morbidity by obviating the need for middle cranial fossa approaches, donor soft tissue sites, and spinal drainage.
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