Surgical treatment of giant benign sacral neurogenic tumors using the posterior-only approach.

Objective: Few studies have reported on the effects of surgery on giant benign sacral neurogenic tumors since these tumors represent a major challenge for surgical oncologists. In the present study, we retrospectively reviewed our experiences in performing resections of giant benign sacral neurogenic tumors using the posterior-only approach via "fishing" method, and assessed the outcomes of patients after this procedure.

Methods: We retrospectively reviewed and analyzed the records of 155 consecutive patients with giant benign sacral neurogenic tumors who underwent resection by a posterior-only approach in our center from Feb 2008 to Feb 2018.

Results: Operations lasted for a mean of 183 ± 37 min (range, 125-230 min). The mean estimated blood loss during the surgery was 1098 ± 889 ml (range, 600-4100 ml). The mean follow-up time was 65 ± 39 months (range, 12-118 months). By the last follow-up, the local recurrence rate was 7.1% (11/155), the combined overall symptom resolution and remission rate was 91.1% (123/135), and the total complication rate was 17.4% (27/155).

Conclusions: The posterior-only approach is safe and effective in patients with giant benign sacral neurogenic tumors.