Utrasonic technology-assited microsurgery resection of ventral or ventrolateral spinal schwannomas

Objective To explore the application of utrasonic technology-assited microsurgery resection of ventral or ventrolateral spinal schwannomas.Methods Forty patients with ventral or ventrolateral spinal schwannomas were treated by CUSA-assited microsurgery.Results The tumors were totally resected suc-cessfully acompanied by minimal blood loss and adjacent structures could avoid damaged.Preoperative and postoperative magnetic resonance imaging demonstrated complete resection in all cases.Neurological func-tions had good recovery.With follow-up of 3 months to 3 years,there was no instability of the spine or any recurrence.Conclusion utrasonic technology-assited microsurgery resection of ventral or ventrolateral spi-nal schwannomas by posterior approach appears a safe,efficient mini-invasive surgical approach,without mechanical or heat injury. Key words: utrasonic technology; posterior approach; microsurgery; spinal schwannoma