Novel techniques for solitary atlas osteochondroma: a case report and literature review.

Osteochondroma is a common benign bone tumor that is rarely seen in the spine, especially in the atlas. Although most solitary atlas osteochondromas have no symptoms, some exostosis may cause severe clinical symptoms that need treatment within the spine. Here, we report a 21-year-old male who presented with apsychia as well as numbness in his right upper and lower limbs for 2 months. The patient reported a history of neck trauma 10 years ago. He received a posterior laminectomy without reconstruction later, and the symptoms improved immediately. During a 32 month follow-up, there was no recurrence of the osteochondroma. Novel techniques for the treatment of this case were applied: simulated surgical resection using 3-Matic 9.0 software, 3D printed model, 3D Digital Image Microscopy, and piezoelectric surgery. These novel techniques provided significant benefits to the patients, the surgeon, and medical education.