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Contralateral-Structure-Preserving Endoscopic Resection of Cervical Osteochondroma: A Technical Note.

Chun-Gon Park¹, Hyun-Seong Kim², Sung-Kyu Kim^1,3

¹Department of Orthopedic Surgery, Chonnam National University Hospital, 42 Jebongro, Dong-gu, Gwangju 61469, Republic of Korea.

Journal of Clinical Medicine

|June 26, 2026

Summary

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This study introduces a minimally invasive endoscopic technique for removing cervical osteochondromas, preserving crucial spinal structures and avoiding deformity. The approach successfully resolved patient symptoms with excellent long-term outcomes.

Area of Science:

Neurosurgery
Spine Surgery
Minimally Invasive Techniques

Background:

Cervical osteochondromas invading the vertebral canal can cause spinal cord compression.
Conventional open laminectomy risks cervical deformity by disrupting posterior stabilizing structures.
A novel contralateral-structure-preserving endoscopic technique is presented for osteochondroma resection.

Purpose of the Study:

To describe and evaluate a minimally invasive endoscopic technique for cervical osteochondroma resection.
To assess the safety and efficacy of preserving contralateral spinal structures during resection.
To compare this technique with conventional open approaches.

Main Methods:

A 25-year-old patient with a C3 osteochondroma causing spinal cord compression underwent unilateral biportal endoscopic surgery.

Keywords:

cervical vertebrae endoscopy multiple hereditary exostosis osteochondroma posterior tension band spine unilateral biportal endoscopic spine surgery

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The technique involved partial unilateral laminectomy and a sublaminar endoscopic corridor, preserving contralateral structures.

Continuous intraoperative neurophysiological monitoring (SSEP and MEP) was employed.

Main Results:

Complete en bloc resection of the osteochondroma was achieved with negative margins.
The patient experienced complete symptom resolution and maintained cervical lordosis.
At 18-month follow-up, the patient remained symptom-free with significant functional improvement and no recurrence.

Conclusions:

Contralateral-structure-preserving endoscopic resection is a viable minimally invasive alternative for select cervical osteochondromas.
This technique may reduce the risk of postoperative deformity compared to wide laminectomy.
Further comparative studies are needed to confirm long-term biomechanical and clinical benefits.