Remodeling of the Cervical Facet Joint After Minimally Invasive Microendoscopic Resection for Cervical Osteoid Osteoma.
METHODS
Case report and systematic review of the literature.


OBJECTIVE
To describe a rare case of remodeling of the cervical facet joint after the microendoscopic resection of an osteoid osteoma.


BACKGROUND
Osteoid osteoma, the third most common benign bone tumor, is often treated by image-guided percutaneous removal of the nidus. However, percutaneous resection poses technical difficulties when the tumor is located near the spinal cord or nerve roots. To our knowledge, there are no reports describing postoperative remodeling of the cervical facet joint after surgical resection of an osteoid osteoma.


METHODS
A 13-year-old boy was presented with neck pain that became worse at night. Computed tomography showed an osteoid osteoma in the right 7th cervical superior articular process. We successfully resected the nidus of the osteoid osteoma using minimally invasive microendoscopy.


RESULTS
The patient was symptom-free at the 1-year follow up, and computed tomography images showed new bone formation at the C6/7 facet joint.


CONCLUSIONS
This case indicates that microendoscopic resection is safe and effective for treating a cervical osteoid osteoma. This technique allowed total resection of the nidus with only minimal damage to the adjacent soft tissue and bone, and induced remodeling of the resection site.Level of Evidence: 4.
Department of Orthopedic Surgery, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
Tomohiro
T
Hikata
Department of Orthopedic Surgery, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
Nobuyuki
N
Fujita
Department of Orthopedic Surgery, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
Akio
A
Iwanami
Department of Advanced Therapy for Spine and Spinal Cord Disorders, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
Kota
K
Watanabe
Department of Orthopedic Surgery, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
Masaya
M
Nakamura
Department of Orthopedic Surgery, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
Morio
M
Matsumoto
Department of Orthopedic Surgery, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.
Ken
K
Ishii
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