title: Apical hemifacetectomy of the first sacral vertebra in the treatment of an osteoid osteoma.
abstract: We present the surgical technique of apical hemifacetectomy, which is useful for performing selective resection of lesions located in the upper articular processes avoiding facet joint instability. This surgical technique was used in a 20-year-old patient to remove an osteoid osteoma deeply located in the S1 articular process.
authors.affiliation: Departamento de Cirugía Ortopédica y Traumatología, Clínica Universitaria de Navarra, Pamplona, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Villas
authors.forename: M
authors.initials: M
authors.lastname: Leyes
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D010017:Osteoma, Osteoid / Q000601:surgery*; D012447:Sacrum / Q000601:surgery*; D013125:Spinal Neoplasms / Q000601:surgery*