Efficacy of Hybrid Sleeve-Assisted Surgery for Spinal Dural Arteriovenous Fistula.

Abstract

This study aimed to evaluate the efficacy of hybrid surgery combined with the sleeve technique in treating spinal dural arteriovenous fistula (SDAVF). A retrospective analysis was conducted on the clinical data of 16 patients with SDAVF who underwent hybrid surgery between October 2020 and June 2024. Spinal-cord function was quantitatively assessed preoperatively and postoperatively using the modified Aminoff-Logue Scale. Postoperative follow-up was 1-36 months. A decrease in the Aminoff-Logue Scale score indicated functional improvement, whereas an increase indicated deterioration. Intraoperative spinal digital subtraction angiography results confirmed the complete disappearance of the fistulas in all the 16 cases. Thirteen patients (81%) exhibited improved spinal-cord function, whereas 3 patients showed no changes. Hybrid sleeve-assisted surgery integrates the advantages of endovascular interventional therapy and microsurgery, reducing late recurrence and surgical trauma. Consequently, this combined approach represents a valuable, clinically translatable therapeutic modality for the management of SDAVF.