PT  - JOURNAL ARTICLE
AU  - Kotheeranurak, Vit
AU  - Jitpakdee, Khanathip
AU  - Rujiramongkolchai, Napaporn
AU  - Atikankul, Taywin
AU  - Singhatanadgige, Weerasak
AU  - Limthongkul, Worawat
AU  - Tejapongvorachai, Taweechai
AU  - Kim, Jin-Sung
TI  - Remodeling of the Lumbar Facet Joint After Full Endoscopic Resection for Lumbar Osteoid Osteoma: Case Report and Literature Review
AID  - 10.14444/8210
DP  - 2022 Apr 01
TA  - International Journal of Spine Surgery
PG  - 378--383
VI  - 16
IP  - 2
4099  - https://www.ijssurgery.com/content/16/2/378.short
4100  - https://www.ijssurgery.com/content/16/2/378.full
SO  - Int J Spine Surg2022 Apr 01; 16
AB  - Background Osteoid osteoma (OO) is a common benign bone tumor; however, approximately 25% of cases have spine involvement. It is often treated by image-guided radiofrequency ablation to break down the nidus. Few reports have described full endoscopic resection of the lesion, but none have described postoperative remodeling of the lumbar facet joint after surgical resection of an OO. The study aimed to describe a rare case of remodeling of the lumbar facet joint and then delineate the least invasive surgical technique of endoscopic resection of an OO.Methods A 26-year-old man presented with severe left buttock pain and sciatica that worsened at night and was relieved by ibuprofen. Magnetic resonance imaging indicated a left inferior facet of an L3 mass-like lesion. A thin-section computed tomography image revealed a nidus, which was compatible with an OO. Full endoscopic resection was performed to completely remove the nidus of the OO.Results At the 2-year follow-up, the patient was symptom-free and computed tomography images indicated new bone formation.Conclusions The present case and literature review demonstrate that endoscopic resection is safe and effective for managing a posterior element of lumbar OO. Furthermore, this technique allows complete removal of the nidus with minimal damage to surrounding structures and leads to remodeling of the resection site.Clinical Relevance Patients with OO involving the posterior element of the spine can present with buttock and radicular pain, mimicking lumbar disc herniation. OO can be successfully removed by the full endoscopic method and remodeling of the resected site can be anticipated.Level of Evidence 4.