Minimally Invasive Biportal Endoscopic Resection of a Cervical Laminar Osteoid Osteoma Adjacent to the Facet Joint: A Case Report

Overview

Osteoid osteoma is an uncommon benign osseous neoplasm presenting in the cervical spine. Traditional surgical management via open excision or radiofrequency ablation carries risks of substantial tissue trauma and postoperative instability. This report documents the application of unilateral biportal endoscopic resection for treatment of a cervical laminar osteoid osteoma in a 50-year-old patient presenting with six months of persistent left-sided cervical pain.

Methods and approach

A 15-mm nidus located in the left lamina of C3 was identified on imaging studies. Surgical resection was performed utilizing unilateral biportal endoscopy, a minimally invasive technique enabling binocular visualization and instrumentation through two separate portal incisions. The approach prioritized preservation of the ipsilateral facet joint and adjacent anatomical structures while achieving complete lesion excision. Histopathologic analysis confirmed the diagnosis of osteoid osteoma.

Results

Immediate postoperative symptom resolution occurred without perioperative complications. Computed tomography and magnetic resonance imaging at seven-month follow-up demonstrated complete lesion removal with no recurrence. Spinal stability was maintained, and the facet joint remained intact.

Implications

Unilateral biportal endoscopy constitutes an effective minimally invasive surgical option for cervical osteoid osteoma resection. The technique provides adequate visualization for precise lesion excision while reducing tissue disruption relative to conventional open approaches. Preservation of spinal stability and structural integrity represents a significant clinical advantage over traditional methods.