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Pubmed for Handhelds

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  • Title: [Surgery of the skull base and paranasal sinuses assisted by a computerized navigation system without external orientation support].
    Author: Caversaccio M, Nuyens M, Bächler R, Lädrach K, Schroth G, Nolte L, Häusler R.
    Journal: Acta Otorrinolaringol Esp; 1999; 50(5):392-7. PubMed ID: 10491477.
    Abstract:
    OBJECTIVE: To present a new concept in computer-assisted surgery for the base of the skull and paranasal sinuses using a frameless navigation system. METHOD AND MATERIALS: This system is based on computer tomography images, which are displayed online on a workstation monitor. Using specially mounted infrared instruments, the patient's anatomic landmarks are visualized on the monitor. This system does not require invasive markers because it uses a reference system fixed to the patient with a silicone maxillary splint. PATIENTS: From March 1997 to February 1998 we operated on 44 patients with this innovative system. RESULTS: The clinical accuracy of this system was 0.5 to 2 mm for surgery of the anterior skull base and 1 to 2.5 mm for the lateral skull base. There were no intraoperative complications. CONCLUSIONS: This computer-assisted surgical aid made it possible to carry out complex and difficult skull-base surgery with reasonable intraoperative safety. It also allowed development of new minimally invasive surgical approaches.
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