To investigate the effect and safety of microsurgical resection of spinal neurilemmoma of C₂ segment through hemi-semi lamina approach.

Twelve patients with spinal neurinoma of C₂ segment who were treated in the First Affiliated Hospital of Shandong First Medical University from June 2014 to June 2018 were analyzed retrospectively. They were all treated by hemi-semi lamina approach. The clinical data before and after the operation were analyzed to evaluate the clinical efficacy and spinal stability of the patients.

All the 12 tumors were completely resected, all of which were confirmed by postoperative pathology as neurilemmoma, including 8 cases of dumbbell tumor, 4 cases of small spherical tumor. The preoperative symptoms of the patients were significantly improved after the operation and during the follow-up period (6-36 months), and there were no surgical complications, tumor recurrence and spinal instability.

Hemi-semi lamina approach can retain the original bone structure and spinal stability to the greatest extent, and provide enough space for the resection of C₂ neurilemmoma. It can be used as a preferred surgical option.